100% MADE IN THE USA

For the most demanding structural needs, you can rely on Decker. Domestic products for highway, bridge and building construction include hex, tower, guard rail and culvert nuts. All are available with a plain finish or a variety of coatings.

A reputation built on quality and service.

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ASTM A563 GRADE A & SAE J995 GRADE 5 (1/4"-1")

Finished Hex Nuts

ASTM A563 GRADE C HEAVY HEX NUTS (1/2" - 1")

For use with A325 type 1 bolts

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ASTM A563 Grade DH Finished Hex Nuts ( 3/8" - 1" )

For use with A394 type 1 bolts.

Heavy Hex Nuts

For use with A325 & A490 bolts.

ASTM A563 Grade C3 & DH3

Manufactured using atmospheric corrosion resistant material with weathering characteristics.

Tower Nuts

Available with or without prevailing torque/locking feature: 5/8", 3/4", 7/8". Available with recessed bearing surface.

Guard Rail Nuts

Double recessed: 5/8" & M16. Manufactured with carbon steel or weathering steel.

Culvert Nuts

Furnished in 3/4" & 7/8" thread sizes.