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FHA004C012Z

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SKU:
FHA004C012Z
$1.00/ EA
Details

4-40 X 3/4 FLAT SHCS ALLOY

Description

Low-profile, 82° countersunk head. Alloy zinc plated flat head socket cap screws are ideal for applications requiring a strong, corrosion-resistant fastener with a flush mount. Length is measured from the top of the head

Material

Screws shall be made from alloy steel per ASTM F835

Hardness

½” diameter and smaller HRC 39-45 Over ½” HRC 37-45.

Zinc

Zinc electroplating is a corrosion-resistant coating that slows rusting by keeping out the moisture lingering in air molecules. It has a high-temperature tolerance of up to 120  and can be useful for applications requiring aesthetic details. The finish is smooth and silvery blue. Coated fasteners are RoHS compliant (hexavalent chromium-free).

Screws are baked within 1 hour after plating for 14 hours to reduce susceptibility to Hydrogen Embrittlement.  HE is unpredictable.  All plated lots are thoroughly tested prior to sale to further reduce incidence.