Countersunk Bolts

Countersunk Bolts

Countersunk Bolts are flat headed bolt fasteners with hex sockert drive into the head. Countersunk bolts have a cone type neck with flat head. Flat Head Hex Socket Bolts, Flat Head Socket Cap Bolts are other alias of hex head bolts. Countersunk bolts dimensions are defined in both metric and imperials sizes with unified national coarse pitch (UNC), fine pitch (UNF), fixed pitch (UN) and iso metric thread profile. These are produced across all material categories and astm specifications but most commonly produced under F568 grade 8.8, 10.9, 12.9, F593, BS EN ISO 3506-1, SS304, SS316, 2205, etc.

Browse the page for information on Countersunk bolt manufacturing process, forming method, available sizes, sub-types, thread types, metric and imperial dimension standards, weight charts, torque values, material categories, grades and astm specifications.

Countersunk Bolts Properties

Forming Hot & Cold Forged
Metric Size M10 to M100
Imperial Size 3/8 to 8"
Threads UNC, UNF, ISO, BSW & ACME.
Standards ASME,BS,DIN,ISO,UNI,DIN-EN
Sub types 1. Fully Threaded Countersunk Bolts
2. Partial Threaded Countersunk Bolts
3. Metric Countersunk Bolts
4. Imperial Countersunk Bolts

Countersunk Bolts Standards

ASME B18.2.1 3/8 inch to 3 inch
BS 1769 ½ inch to 2 inch
ASME B18.2.3.6M M12 to M36
ASME B18.2.3.7M M16 to M36
DIN 6914 M12 to M36
ISO 7412 M12 to M36
UNI 5712 M12 to M36
DIN-EN 14399-4 M12 to M36