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4-40 Button Head Screws (25pcs)
4-40 Button Head Screws (25pcs)
  • Description
  • Reviews
• 25-pack of 4-40 Button Head Screws (length of 1/4", 3/8" or 1/2")
• Black Oxide screws are harder than Stainless Steel or Zinc Plated and the heads will not strip out as easily.
*Note: These screws require a 1/16" hex wrench
2 Product Reviews - Average rating 4.5 / 5 (Show All)

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Head strips out easily

- 13th October 2019

These work fine unless you use loctite blue or above. They are low weight and high strength but a larger hex would improve these drastically. I have to use pliers to remove half of my bolts.

Hard to find screws

- 29th October 2013

It is difficult to find such high-quality 4-40 button head screws with hex heads. I am using these in combat robot for strength and also on autonomous robot because they are low-profile and look cool!

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4-40 BH Length
Price: 2.93 CAD
2.23 USD 2.00 EUR
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