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UNC Hex Head Flange Bolts with Serrations 1/4 inch in A2 Stainless Steel

Hexagon headed bolt with a flange. Also known as a washer bolt. The wider surface area beneath the head spreads the clamping pressure and negates the need for a washer. These UNC hex head flange bolts are serrated. The serrations are anti-rotational and bite into the material which they are connecting to secure the fixing.
Image of UNC Hex Head Flange Bolts with Serrations in A2 image
technical drawing of UNC Hex Head Flange Bolts with Serrations
Technical Summary
d nominal diameter 1/4
tpi threads per inch 20
k head height 0.28
s drive size 3/8
dc flange diameter 0.56
e width across corners 0.433
h height 0.17
Standard ASME B18.2.1
Material A2 Stainless Steel
all dimensions in inches
html graphic ASME B18.2.1 Flange Bolt Standard HTML
pdf graphic ASME B18.2.1 Flange Bolt Standard PDF
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technical drawing of UNC Hex Head Flange Bolts with Serrations
Technical Summary
d nominal diameter 1/4
tpi threads per inch 20
k head height 0.28
s drive size 3/8
dc flange diameter 0.56
e width across corners 0.433
h height 0.17
Standard ASME B18.2.1
Material A2 Stainless Steel
all dimensions in inches
html graphic ASME B18.2.1 Flange Bolt Standard HTML
pdf graphic ASME B18.2.1 Flange Bolt Standard PDF