4-40 Machine Screws (25pcs) (choose length)

Price: 3.15CAD

2.25 USD 1.96 EUR

• 25-pack of 4-40 Machine Screws (Flat Head, Button Head)
• Black Oxide screws are harder than Stainless Steel or Zinc Plated and the heads will not strip out as easily.

Description
Reviews

25-pack of 4-40 Button Head Screws (Flat Head, Button Head)
Black Oxide screws are harder than Stainless Steel or Zinc Plated and the heads will not strip out as easily.

Weight per screw:
Button Head 1/4": 0.38g
Button Head 3/8": 0.48g
Button Head 1/2": 0.63g
Flat Head 1/4": 0.41g
Flat Head 3/8": 0.48g
Flat Head 1/2": 0.66g

*Note: These screws require a 1/16" hex wrench

2 Product Reviews - Average rating 4.5 / 5 (Show All)

Head strips out easily

Julien Mott - 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

Gabriel - 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!

We don't currently have that one in stock

4-40 Machine Screws (25pcs) (choose length)