Security fasteners provide an added level of security by their drive design that prevents removal with ordinary screw drivers. Maximum torque transfer & positive tool engagement means easier drive installation with less pressure & slippage. Requires matching driver bit.
- Button head screws are typically used for general purposes with a lower crown & shallower recess than round head screws.
- Brand Tamper-pruf screws
- Manufacturers part number 21000
- Description Tamper resistant machine screw
- Size #4
- Length 1/4"
- Head Button
- Drive Hex socket - pin
- Material Steel
- Finish Black oxide
- Unit of measurement Inch (imperial)
- Country of origin Made in usa
- Package qty 100
- Drill size 3/32"
- Thread Coarse
- Full or partial thread Full
- Grade 4037
