(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.
63,000 Stock items for Same Day Shipping
63,000 Item Stok untuk Pengiriman di Hari yang Sama
Search by Category / Brand
Pencarian dengan
Kategori / Merek
Search by Category Pencarian dengan Kategori
- Automation Components
A wide variety of standard and configurable components for factory automation engineers in industries such as automotive, semiconductor, packaging, medical and many more.
- Linear Motion
- Rotary Motion
- Connecting Parts
- Rotary Power Transmission
- Motors
- Conveyors & Material Handling
- Locating, Positioning, Jigs & Fixtures
- Inspection
- Sensors, Switches
- Pneumatics, Hydraulics
- Vacuum Components
- Hydraulic Equipment
- Discharging / Painting Devices
- Pipe, Tubes, Hoses & Fittings
- Modules, Units
- Heaters, Temperature Control
- Framing & Support
- Casters, Leveling Mounts, Posts
- Doors, Cabinet Hardware
- Springs, Shock Absorbers
- Adjusting, Fastening, Magnets
- Antivibration, Soundproofing Materials, Safety Products
- Fasteners
A good selection of accessories such as screws, bolts, washers and nuts that you may need for your daily engineering usage.
- Materials
Browse industrial materials ranging from heat insulating plates, sponges, to metal and plastic materials in different sizes to meet your various applications.
- Wiring Components
A wide variety of wiring parts for connecting and protecting control and PC parts including Connectors, Cables, Electric Wires, Crimping Terminals and more.
- LAN Cables / Industrial Network Cables
- Cables by Application
- Cables with Connectors
- RS232 / Personal Computers / AV Cables
- Wires/Cables
- Connectors (General Purpose)
- Crimp Terminals
- Zip Ties
- Cable Glands
- Cable Bushings/Clips/Stickers
- Screws/Spacers
- Cable Accessories
- Tubes
- Protection Tubes
- Ducts/Wiremolds
- General Purpose Tools
- Dedicated Tools
- Soldering Supplies
- Electrical & Controls
A wide variety of controls and PC parts for electrical engineers including Controls, Powers, PC parts and more.
- Cutting Tools
A wide variety of cutting tools for many uses and work materials including End Mills, Drills, Cutters, Reamers, Turning Tools and more.
- Carbide End Mills
- HSS End Mills
- Milling Cutter Inserts/Holders
- Customized Straight Blade End Mills
- Dedicated Cutters
- Turning Tools
- Drill Bits
- Screw-Hole-Related Tools
- Reamers
- Chamfering / Centering Tools
- Fixtures Related to Cutting Tools
- Step Drills
- Hole Saws
- Clean Key Cutters
- Core Drills (Tip Tools)
- Magnetic Drilling Machine Cutters
- Drill Bits for Electric Drilling Machines
- Woodworking Drill Cutters
- Drills for Concrete
- Processing Tools
A wide variety of tools and supplies used in processing including Machine Tools, Measurement Tools, Grinding and Polishing Supplies and more.
- Material Handling & Storage
A wide variety of goods used in shipment, material handling and warehouse including Tape supplies, Stretch film, Truck, Shelf, Crane and more.
- Tape Supplies
- Cushioning Materials
- Stretch Films
- Cardboard
- Plastic Bags
- PP Bands
- Magic Tapes / Tying Belts
- Rubber Bands
- Strings/Ropes
- Cable Ties
- Tags
- Labelers
- Unpacking Cutters
- Packing Support Equipment
- Cloth Sheets for Packing
- Conveyance/Dolly Carts
- Tool Wagons
- Tool Cabinets / Container Racks
- Lifters / Hand Pallets
- Container Pallets
- Storage Supplies
- Shelves/Racks
- Work Benches
- Suspended Clamps/Suspended Belts
- Jack Winches
- Chain Block Cranes
- Bottles/Containers
- Bicycle Storage Area
- Safety & General Supplies
A large variety of goods for every kind of factories and offices including Protection items, Cleaning supplies, sanitations, office supplies and more.
- Lab & Clean Room Supplies
A large variety of items used in R&D and Clean Room including research Equipment, Laboratory Essentials, Analysis Supplies, Clean Environment-Related Equipment and more.
- Press Die Components
Choose from thousands of standard stamping die components including Punch & Die, Gas Springs, Guide Components, Coil Springs and many more.
- Plastic Mold Components
Browse our wide variety of mold components including Ejector Pins, Sleeves, Leader Components, Sprue Bushings and many more.
- Ejector Pins
- Sleeves, Center Pins
- Core Pins
- Sprue bushings, Gates, and other components
- Date Mark Inserts, Recycle Mark Inserts, Pins with Gas Vent
- Undercut, Plates
- Leader Components, Components for Ejector Space
- Mold Opening Controllers
- Cooling or Heating Components
- Accessories, Others
- Components of Large Mold, Die Casting
- Injection Molding Components
Browse our injection molding components including Heating Items, Couplers, Hoses and more.
- Injection Molding Machine Products
- Accessories of Equipment
- Auxiliary Equipment
- Air Nippers
- Air Cylinders
- Air Chuck for Runner
- Chuck Board Components
- Frames
- Suction Components
- Parallel Air Chuck
- Special Air Chuck
- Chemical for Injection Molding
- Mold Maintenance
- Heating Items
- Heat Insulation Sheets
- Couplers, Plugs, One-touch Joints
- Tubes, Hoses, Peripheral Components
- Komponen Mekanis
- Linear Motion
- Rotary Motion
- Connecting Parts
- Rotary Power Transmission
- Motors
- Conveyors & Material Handling
- Locating, Positioning, Jigs & Fixtures
- Inspection
- Sensors, Switches
- Pneumatics, Hydraulics
- Vacuum Components
- Hydraulic Equipment
- Discharging / Painting Devices
- Pipe, Tubes, Hoses & Fittings
- Modules, Units
- Heaters, Temperature Control
- Framing & Support
- Casters, Leveling Mounts, Posts
- Doors, Cabinet Hardware
- Springs, Shock Absorbers
- Adjusting, Fastening, Magnets
- Antivibration, Soundproofing Materials, Safety Products
- Sekrup, Baut, Washer, Nut
- Material
- Komponen Kabel
- LAN Cables / Industrial Network Cables
- Cables by Application
- Cables with Connectors
- RS232 / Personal Computers / AV Cables
- Wires/Cables
- Connectors (General Purpose)
- Crimp Terminals
- Zip Ties
- Cable Glands
- Cable Bushings/Clips/Stickers
- Screws/Spacers
- Cable Accessories
- Tubes
- Protection Tubes
- Ducts/Wiremolds
- General Purpose Tools
- Dedicated Tools
- Soldering Supplies
- Elektrikal & Kontrol
- Peralatan Pemotong
- Carbide End Mills
- HSS End Mills
- Milling Cutter Inserts/Holders
- Customized Straight Blade End Mills
- Dedicated Cutters
- Turning Tools
- Drill Bits
- Screw-Hole-Related Tools
- Reamers
- Chamfering / Centering Tools
- Fixtures Related to Cutting Tools
- Step Drills
- Hole Saws
- Clean Key Cutters
- Core Drills (Tip Tools)
- Magnetic Drilling Machine Cutters
- Drill Bits for Electric Drilling Machines
- Woodworking Drill Cutters
- Drills for Concrete
- Peralatan Produksi
- Penanganan Material & Penyimpanan
- Tape Supplies
- Cushioning Materials
- Stretch Films
- Cardboard
- Plastic Bags
- PP Bands
- Magic Tapes / Tying Belts
- Rubber Bands
- Strings/Ropes
- Cable Ties
- Tags
- Labelers
- Unpacking Cutters
- Packing Support Equipment
- Cloth Sheets for Packing
- Conveyance/Dolly Carts
- Tool Wagons
- Tool Cabinets / Container Racks
- Lifters / Hand Pallets
- Container Pallets
- Storage Supplies
- Shelves/Racks
- Work Benches
- Suspended Clamps/Suspended Belts
- Jack Winches
- Chain Block Cranes
- Bottles/Containers
- Bicycle Storage Area
- Perlengkapan Keamanan & Umum
- Perlengkapan Sanitasi & Lab
- Komponen Press Die
- Komponen Plastik Mold
- Ejector Pins
- Sleeves, Center Pins
- Core Pins
- Sprue bushings, Gates, and other components
- Date Mark Inserts, Recycle Mark Inserts, Pins with Gas Vent
- Undercut, Plates
- Leader Components, Components for Ejector Space
- Mold Opening Controllers
- Cooling or Heating Components
- Accessories, Others
- Components of Large Mold, Die Casting
- Komponen Injeksi Moulding
- Injection Molding Machine Products
- Accessories of Equipment
- Auxiliary Equipment
- Air Nippers
- Air Cylinders
- Air Chuck for Runner
- Chuck Board Components
- Frames
- Suction Components
- Parallel Air Chuck
- Special Air Chuck
- Chemical for Injection Molding
- Mold Maintenance
- Heating Items
- Heat Insulation Sheets
- Couplers, Plugs, One-touch Joints
- Tubes, Hoses, Peripheral Components
Search by Brand Pencarian dengan Merek
This translation is a Google translation Terjemahan ini adalah terjemahan Google
- Pemberitahuan Jadwal Pemeliharaan : Situs ini akan tidak tersedia dikarenaka jadwal pemeliharaan mulai dari 8:00 sampai dengan 20:00 pada tanggal 16/6/2024. Kami mohon maaf atas ketidaknyamanan yang terjadi.
Scheduled Maintenance Notice: This site will be unavailable due to scheduled maintenance from 8:00 to 20:00 (WIB) 16/6/2024. We apologize for the inconvenience. - Sehubungan dengan adanya Peraturan Baru Kementerian Perdagangan No.36 Tahun 2023 tentang Pembatasan Impor Barang, MISUMI Indonesia melakukan tindakan pencegahan. Lihat informasi detailnya di sini
Due to New Regulation of Ministry Of Trade No.36 of 2023 concerning retrictions on imports of goods, MISUMI Indonesia do precautions measure. See detail information here - Nomor telepon alternatif Kontak Layanan Pelanggan : 021-29182911| 021-29182991 | 021-29182997 | 021-29182998
Alternative telephone number Contact Customer Service: 021-29182911 | 021-29182991 | 021-29182997 | 021-29182998
Knob Screws（Main Body, Type：Round Shape Page4）
When selecting a Knobs Screws, it is crucial to consider factors, including size, shape (eg., round, mushroom, ball, T- shaped and polygon shape), material (eg., plastic, stainless steel, aluminum and so on.) and mounting type for example threaded and tapped. These considerations are crucial for ensuring the production of high-quality products. We highly recommend reputable brands such as MISUMI, ESCO and KONISHI, as well as cost-effective options from MISUMI ECONOMY.
Take advantage of the convenience of FREE SHIPPING and NO MINIMUM ORDER on knob screw. Should you have any doubts or require assistance in choosing the right product, our experts are readily available to provide advice and guidance.
| Days to Ship |
|
|---|
-
High-Pick, Bolt No. 2, Black【500 Pieces Per Package】
DAIMARU BYORA SEISAKUSHO
Body
[Type] Round shaped mounting section
[Type] Male thread mounting part diameter d (mm) or nominal diameter 4 Round type
[Type] Cylindrical side part processing No knurling additional function Male thread end processing None
[Surface Treatment] None Mounting Portion
[Materials] Steel mounting part
[Surface Treatment] Trivalent White Body OD D (ø) 10 Body Height t (mm) 10
[Sales Unit] Box· PackDays to Ship: 18 Day(s) or more -
Grip Nut E-1 Black【100 Pieces Per Package】
DAIMARU BYORA SEISAKUSHO
Body
[Type] Round shaped mounting section
[Type] Round female thread
[Type] Chrysanthemum No additional function Female thread· round hole machined penetration body
[Surface Treatment] None Mounting Portion
[Materials] Steel mounting part
[Surface Treatment] Trivalent White
[Sales unit] Box· Pack mounting part diameter d (mm) or nominal diameter 4 5 6 8Days to Ship: 18 Day(s) or more -
Thumb Knob (Round Type, Black)
GOSHO WORKS
The combination of a synthetic resin knob and a hex socket head cap screws allows free selection of the thread length. The knob is made of synthetic resin and the bolt is made of copper alloy, making it extremely strong and durable enough to withstand repeated use. It is also brightly colored and beautiful, and is used as a part of interior design.
Days to Ship: 16 Day(s) or more -
GOSHO WORKS
Body
[Type] Round shaped mounting section
[Type] Round female thread
[Type] Cylindrical side part machining Knurling addition function None
[Materials] Delrin 500 main body
[Surface Treatment] None Mounting Portion
[Materials] Polyacetal mounting section
[Surface treatment] No knob
[Color] Gray
[Unit of sale] Loose (available from 1 piece)Days to Ship: 16 Day(s) or more -
GOSHO WORKS
Body
[Type] Round shaped mounting section
[Type] Round female thread
[Type] Cylindrical side part machining Knurling addition function None
[Materials] Delrin 500 main body
[Surface Treatment] None Mounting Portion
[Materials] Polyacetal mounting section
[Surface treatment] No knob
[Color] Red
[color]
[Unit of sale] Loose (available from 1 piece)Days to Ship: 16 Day(s) or more -
D Cap (White Round Type)【100 Pieces Per Package】
DAIMARU BYORA SEISAKUSHO
Body
[Type] Round shaped mounting section
[Type] Round female thread
[Type] Cylindrical side part machining Knurling addition function None
[Materials] Steel body
[Surface Treatment] None Mounting Portion
[Material] Other mounting part
[Surface Treatment] None
[Sales unit] Box· Pack mounting part diameter d (mm) or nominal diameter 3 4 5 6 8 Body outer diameter D (ø) 9.5 13 16 19 26 Body height t (mm) 4.5 5.5 6.6 7.5 8.3 10.2Days to Ship: 18 Day(s) or more -
RICHENGINEERING
A highly versatile fixed knob.
[Features]
·The lineup includes five types: M4, M5, M6, M8, and blind hole types.
·The shape of the handle makes it easy to grip and turn.
·The shape of the mounting part is a thread.
[Applications]
·Use it as a handle for the table height adjustment screw or when you want to fix the movement.Days to Ship: 16 Day(s) or more -
Special Price Days to Ship: Same day -
Days to Ship: 16 Day(s) or more -
Male threaded dimple knob Male thread
ESCO
[Features]·ESCO Co., Ltd Knob/knob male thread dimple knob. ·Male thread.
Days to Ship: 16 Day(s) or more -
Male Threaded Dimple Knob with Stepped Male Thread
ESCO
[Features]·ESCO Co., Ltd Knob/knob male thread dimple knob. ·Male thread with tiers.
Days to Ship: 16 Day(s) or more -
Days to Ship: 16 Day(s) or more -
Knurled Knob (Male Thread) A Dimension
ESCO
ESCO knob · Knob, knurled knob (male thread). [Features]·The main body type is round.
Days to Ship: 16 Day(s) or more -
Knurled Knob (Male Thread) H Dimension
ESCO
ESCO knob · Knob, knurled knob (male thread). [Features]·The main body type is round.
Days to Ship: 16 Day(s) or more -
Male thread/female thread knob (Stainless Steel)
ESCO
[Features]·Excellent corrosion resistance making it suitable for food machine, cleaning machine, etc.
Days to Ship: 16 Day(s) or more -
Days to Ship: 16 Day(s) or more -
Days to Ship: 12 Day(s) or more -
Male Threaded Knob (Stainless Steel) Round
ESCO
[Features]·ESCO Co., Ltd Knob/knob, Male thread knob. [Materials]It is made of stainless steel.
Days to Ship: 14 Day(s) or more -
Male Threaded Knob (Stainless Steel) Round Drop Prevention Type
ESCO
[Features]·ESCO Co., Ltd Knob/knob, Male thread knob. [Materials]It is made of stainless steel.
Days to Ship: 14 Day(s) or more -
Days to Ship: 14 Day(s) or more
![[NO. 2]UF Screw](http://id.misumi-ec.com/linked/material/mech/ESC1/PHOTO/221005804068.jpg?$product_view_b$)
| Brand |
|---|
| Product Series |
| CAD |
| Days to Ship |
| Mounting Section Dia. d (mm) or Nominal Dia. |
| Mounting Section Type |
| Mounting Section, Length L(mm) |
| Main Body, Type |
| Main Body Material |
| Round Shape, Type |
| Mounting Section, Material |
| Threaded End Machining |
| Set Screw Flat Machining |
| Side Machined |
| Polygonal Shape, Type |
| T Shape, Type |
| Additional Function |
| Tapped, Round Hole Machining |
| Main Body, Surface Treatment |
| Mounting Section, Surface Treatment |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
| Brand | DAIMARU BYORA SEISAKUSHO | DAIMARU BYORA SEISAKUSHO | GOSHO WORKS | GOSHO WORKS | GOSHO WORKS | DAIMARU BYORA SEISAKUSHO | RICHENGINEERING | IMAO CORPORATION | ESCO | ESCO | ESCO | ESCO | ESCO | ESCO | ESCO | ESCO | ESCO | ESCO | ESCO | ESCO |
| Product Series | Male Threaded Knob (Stainless Steel) Round Drop Prevention Type | |||||||||||||||||||
| CAD | ||||||||||||||||||||
| Days to Ship | 18 Day(s) or more | 18 Day(s) or more | 16 Day(s) or more | 16 Day(s) or more | 16 Day(s) or more | 18 Day(s) or more | 16 Day(s) or more | Same day | 16 Day(s) or more | 16 Day(s) or more | 16 Day(s) or more | 16 Day(s) or more | 16 Day(s) or more | 16 Day(s) or more | 16 Day(s) or more | 16 Day(s) or more | 12 Day(s) or more | 14 Day(s) or more | 14 Day(s) or more | 14 Day(s) or more |
| Mounting Section Dia. d (mm) or Nominal Dia. | M4 | M8 | M6 | M5 | M8 | M4 | M4 ～ M6 | M12 | M4 ～ M5 | M3 ～ M8 | M6 ～ M8 | M5 ～ M6 | M4 ～ M8 | M4 ～ M10 | M3 ～ M10 | M10 ～ M12 | M4 ～ M8 | M3 ～ M5 | M3 ～ M6 | M4 ～ M5 |
| Mounting Section Type | Threaded | Tapped | Tapped | Tapped | Tapped | Tapped | Threaded | Tapped | Threaded | Threaded | Threaded (Stepped) | Threaded / Tapped | Threaded (Stepped) | Threaded (Stepped) | Threaded / Tapped | Threaded (Stepped) | Threaded (Stepped) | Threaded (Stepped) | Threaded (Stepped) | Threaded |
| Mounting Section, Length L(mm) | 8 | - | - | - | - | - | 10 ～ 16 | - | - | 10 ～ 25 | 20 ～ 25 | - | 10 ～ 30 | 10 ～ 30 | 10 ～ 25 | 20 ～ 30 | 6 ～ 16 | 10 ～ 20 | 10 ～ 30 | 8 ～ 20 |
| Main Body, Type | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape | Round Shape |
| Main Body Material | - | - | Polyacetal | Polyacetal | Polyacetal | Steel | Phenol | Steel | Nylon / Phenol | Nylon | Nylon | Phenol | Stainless Steel / Steel | Stainless Steel / Steel | Others | Polypropylene | Phenol | Others | Others | Others |
| Round Shape, Type | Cylindrical Shape | Rose Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Mushroom Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape | Cylindrical Shape |
| Mounting Section, Material | Steel | Steel | Polyacetal | Polyacetal | Polyacetal | Others | Steel | Steel | Steel / Others | Others | Others | Brass / Others | - | - | Others | Others | Others | - | - | Others |
| Threaded End Machining | None | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Set Screw Flat Machining | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Side Machined | Knurling | - | Knurling | Knurling | Knurling | Knurling | Dimple | Knurling | - | - | - | - | - | - | - | - | - | - | - | - |
| Polygonal Shape, Type | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| T Shape, Type | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Additional Function | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Not Provided | Fall-off Prevention | Not Provided |
| Tapped, Round Hole Machining | - | Through | - | - | - | - | - | Through | - | - | - | - | - | - | - | - | - | - | - | - |
| Main Body, Surface Treatment | None | None | None | None | None | None | None | Black Oxide | Others / Gloss chrome plated | - | - | - | - | - | - | - | - | - | - | - |
| Mounting Section, Surface Treatment | Trivalent Chromate | Trivalent Chromate | None | None | None | None | Bright Chrome Plating | Black Oxide | Zinc Plating | - | - | Bright Chrome Plating | - | - | - | - | - | - | - | - |
![[NO. 2]UF Screw](http://id.misumi-ec.com/linked/material/mech/ESC1/PHOTO/221005804068.jpg?$product_view_c$)
Loading...
Configure
Specification/Dimensions
-
Mounting Section Dia. d (mm) or Nominal Dia.
-
Mounting Section Type
- Threaded
- Threaded (Stepped)
- Tapped
- Tapped (Stepped)
- Round Bore
- Press Fit
- Others
-
Mounting Section, Length L(mm)
-
Main Body, Type
-
Main Body Material
- Stainless Steel
- Steel
- Aluminum
- Nylon
- Phenol
- ABS
- Polyacetal
- Brass
- Polyamide
- Polypropylene
- Melamine Plastic
- EPDM
- Others
- Vinyl
- Plastic_
-
Round Shape, Type
-
Mounting Section, Material
-
Threaded End Machining
- None
- Spherical
- With Pad
- Cone Point
-
Set Screw Flat Machining
-
Side Machined
-
Polygonal Shape, Type
-
T Shape, Type
-
Additional Function
-
Tapped, Round Hole Machining
-
Main Body, Surface Treatment
-
Mounting Section, Surface Treatment
Narrow search by specifying Manufacturer
CAD
-
- 2D
- 3D
Related Categories to Knob Screws
-
- Catches
- Door Stays
- Telescopic Slide Rails
- Fasteners, Draw Latches
- Latch Handles, Locks, Keys
- Lighting System
- Gas Springs
- Wires, Chains, Metal Fittings, Small Work Pieces
- Parts, Small Work Pieces
- Hanging Tools
- Extrusion Kits and Mesh Fences
- Handle
- Knob Screws
- Lever
- Rotation Handles, Crank Handles
- Hanger Hooks
- Shelves, Shelf Supports, Shelf Poles
- Door Wheels
- Handles
- Hinges
- DIY Supplies
-
-
Credit Card
Kartu Kredit
-
Bank TransferTransfer Bank
MISUMI Contact
MISUMI Kontak
Copyright © MISUMI Corporation All Rights Reserved.
How can we improve?Bagaimana Kami bisa meningkatkan Pelayanan?
How can we improve?Bagaimana Kami bisa meningkatkan Pelayanan?
While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
Customer Privacy Policy Walaupun Kami tidak dapat langsung menjawab saran yang ditulis di lembar ini, informasinya akan kami review untuk peningkatan pelayanan dikemudian hari
Kebijakan Privacy
Thank you for your cooperation.Terima kasih atas kerjasama anda.
While we are not able to respond directly to comments submitted in this form, the information will be reviewed for future improvement.
Please use the inquiry form.
Customer Privacy Policy Walaupun Kami tidak dapat langsung menjawab saran yang ditulis di lembar ini, informasinya akan kami review untuk peningkatan pelayanan dikemudian hari
Silahkan pergunakan Forms Permintaan.
Kebijakan Privacy