Ships From Sydney - 1/4-20 x 2.5 in. Thread Rolling Screw
Shipping from our Sydney location.2.5 in. long thread rolling (thread forming) screw The Hex Washer Head has a flat washer that extends beyond the sides, providing it with a greater bearing surf...Read More
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The Hex Washer Head has a flat washer that extends beyond the sides, providing it with a greater bearing surface than a normal hex head fastener. The washer and the Hex Head are bonded together as one piece; this offers greater protection to the mating surface than a standard hex head. The increased bearing area decreases the likeliness of crushing mating surfaces. Trilobe, or Thread Rolling, screws have a blunt tapered point that requires a pre-drilled or punched hole; eliminates chips and permits replacement with standard screw. Zinc plating, retards the corrosion rate in a normal atmosphere.
- Drive: 3/8 in. wide across flats Hex Unslotted
- Finish: Zinc
- Length: 2.5 in.
- Material: Steel
- Optimal Hole Size For Thread Forming: 0.23 in. diameter
- Style: Thread rolling screw
- Thread: 1/4-20
- Weight: 0.063 lbs