ASTM F1554 Anchor Bolt, DH Nut washer

2025 09/30

ASTM  F1554

 

The ASTM F1554 specification was introduced in 1994 and covers anchor bolts designed to anchor structural supports to concrete foundations. F1554 anchor bolts can take the form of either headed bolts, straight rods, or bent anchor bolts. The three grades 36, 55, and 105 designate the minimum yield strength (ksi) of the anchor bolt. The bolts can be either cut or roll threaded and a weldable grade 55 can be substituted for grade 36 at the supplier’s option. Color coding on the end – 36 blue, 55 yellow, and 105 red – helps facilitate easy identification in the field. Permanent manufacturer and grade marking is allowed under the S2 supplementary requirements.

 

Applications for F1554 anchor bolts include columns in structural steel framed buildings, traffic signal and street lighting poles, and overhead highway sign structures to name just a few.

 

F1554 Grade 36	Low carbon, 36 ksi yield steel anchor bolts
F1554 Grade 55	High strength, low alloy, 55 ksi yield steel anchor bolts
F1554 Grade 105	Alloy, heat treated, high strength 105 ksi yield steel anchor bolts

 

F1554 Mechanical Properties

 

Grade	Marking	Size Inches	Tensile, ksi	Yield ksi min	Yield MPa min	Elong. %min	RA& min
36		1⁄2 - 4	58-80	36	248	23	40
55		1⁄2-2	75-95	55	380	21	30
		2 1⁄4-2 1⁄2	75-95	55	380	21	30
		2 3⁄4-3	75-95	55	380	21	30
		3 1⁄4-4	75-95	55	380	21	30
105		1⁄2-3	125-150	105	724	15	45

 

F1554 Grade Nuts and Washers

 

Grade	Identification	Size Inches	Recommended A563 Nut
			Plain Finish		Hot-Dip or Mechanical Zinc Coated		Washer
			Grade	Style	Grade	Style
36		1⁄2 – 1 1⁄2	A	Hex	A	Hex	F436
		1 5⁄8 – 4	A	Hex Heavy	A	Hex Heavy
55		1⁄2 – 1 1⁄2	A	Hex	A	Hex Heavy	F436
		1 5⁄8 – 4	A	Hex Heavy	A	Hex Heavy
105		1⁄2 – 1 1⁄2	D1	Hex Heavy	DH2	Hex Heavy	F436
		1 5⁄8 – 3	DH2	Hex Heavy	DH2	Hex Heavy

 

1* A563 grade D nuts are rarely available. A563 grade DH or A194 grade 2H should be substituted.

2* The availability of A563 grade DH nuts in nominal sizes 1″ and larger is very limited and generally available only on special orders of 50,000 or more. For smaller quantities, ASTM A194 grade 2H should be considered.