ASME B18.3 5/16-18 UNC×1.5 Cap Screw6 combinations of material, property class and finish supplied in this size.

Standard
ASME B18.3 · 2012
Thread
5/16-18 UNC
Length under head
1-1/2 in
Head height
0.312 in
Clearance / tap drill
F (0.2570 in)
Weight
19.17 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering52.2 pieces per kg
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ASME B18.3 dimension tablePDF · every size

Order 5/16-18 UNC×1.5

Set a quantity on as many rows as you need. Not listed? We make to your drawing — send it with the enquiry.

MaterialClassFinishQuantityNet weight
Alloy SteelBlackened
Alloy SteelPlain
Stainless SteelAFPassivated
Stainless SteelAFPlain
Stainless SteelCWPassivated
Stainless SteelCWPlain

Dimensions at 5/16-18 UNC×1.5

DimensionValue
k0.312 in
Weight19.17 kg / 1000 pcs
Pieces per kg52.2

Plating adds thickness — state the finish on the order.

Holes for this thread

ISO 273 · ISO 2306
HoleDiameter
Tap drillF (0.2570 in)

Quote ASME B18.3 5/16-18 UNC×1.5 Cap Screw

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