Lag Bolts

Lag bolts are wood screws with hexagon or square head and pointed wood threads. Hex lag bolts are most common among wood lag bolts. Lag bolts are used for bolting wood or similar material to metal. Wood lag bolts, hex lag bolts are other alias of hex head bolts.

Lag 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. Browse the page for information on Lag 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.

Lag 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 Lag Bolts 2. Partial Threaded Lag Bolts 3. Metric Lag Bolts 4. Imperial Lag Bolts

Lag 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

Grades

ASTM A193 ASTM A307 ASTM A320 ASTM A325 ASTM A354 ASTM A394 ASTM A437 ASTM A449 ASTM A453 ASTM A490 ASTM A540 ASTM A1014 ASTM A1082 ASTM F468 ASTM F568M ASTM F593 ASTM F738M ASTM F1554 ASTM F2482 ASTM F3125 ASTM F3148 ASTM A394