Detail & Specs
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M5 Metric Flat Head Socket Cap Screw, Stainless + Black Oxide
Flat head cap screws have a 90 degree angle underneath the head. When installed, the head of this screw is meant to sit flush with the surface of the work in a countersunk hole. Also known as a countersunk allen head machine screw, hex drive flat head countersunk socket cap bolt.
Measured by overall length, including the head.
Fully threaded socket cap screws are meant to engage the entire length with a tapped hole. These bolts can be used with many different styles of locking and non-locking nuts, tightly clamping together whatever the cap screw is being used to secure.
Material: Stainless Steel
Suitable for damp locations
Corrosion resistant
Finish: Black Oxide
Attractive matte black finish
Abrasion resistant, does not peel, chip or rub off
Reduces friction, prevents galling
Does not change the strength of the stainless steel
Practically no dimensional change to base fastener
The black oxide coating per MIL-DTL-13924, Class 4 on 300 series corrosion resistant steel meets 96 hours of resistance in a 5% salt spray (fog) test in accordance with ASTM B117. We recommend using stainless steel installation tools to prevent extraneous rust.