Medium-Strength Steel Heavy Hex Head Screws for Structural Applications

The most common heavy hex head screw, these steel screws meet ASTM A325 regulations for structural joints, such as mating I-beams and scaffolding. Material meets ASTM F3125 specifications for quality. Dimensions meet ASME B18.2.6 specifications. Length is measured from under the head.

Usually fit with ASTM A194 2H Nut and F436 Washer.

Partially threaded screws come with precise threaded and unthreaded portions, allowing you to place only the stronger unthreaded portion (grip) in joints subjected to sideways forces.

Hot-dipped galvanized screws have a thick coating for excellent corrosion resistance. To ensure compatibility, use these screws with hot-dipped galvanized steel nuts.

Heavy hex structural bolts
ASTM A325/ A490 ASME/ANSI B18.2.6-2011
d(inch)		1/2	5/8	3/4	7/8	1	1-1/8	1-1/4	1-3/8	1-1/2
P(inch)		13	11	10	9	8	7	7	6	6
ds(inch)	min	0.482	0.605	0.729	0.852	0.976	1.098	1.223	1.345	1.47
	max	0.515	0.642	0.768	0.895	1.022	1.149	1.277	1.404	1.531
s(inch)	Nom	7/8	1-1/16	1-1/4	1-7/16	1-5/8	1-13/16	2	2-3/16	2-3/8
	min	0.85	1.031	1.212	1.394	1.575	1.756	1.938	2.119	2.3
	max	0.875	1.062	1.25	1.438	1.625	1.812	2	2.188	2.375
e(inch)	min	0.969	1.175	1.383	1.589	1.796	2.002	2.209	2.416	2.622
	max	1.01	1.227	1.443	1.66	1.876	2.093	2.309	2.526	2.742
k(inch)	Nom	5/16	25/64	15/32	35/64	39/64	11/16	25/32	17/32	15/16
	min	0.302	0.378	0.455	0.531	0.591	0.658	0.749	0.81	0.902
	max	0.323	0.403	0.483	0.563	0.627	0.718	0.813	0.878	0.974
b(inch)	Ref.	1	1.25	1.38	1.5	1.75	2	2	2.25	2.25

Jiangyin XiangGu Hardware Products Co., Ltd. is located in Wuxi City and close to Shanghai Port, with convenient transportation.

Our company handles all kinds of fasteners such as bolts, nuts and washers made of stainless steel, carbon steel and copper.

Xianggu Hardware is committed to integrating the superior supply chain system of various fastener products, focusing on the salesman's mastery of fastener expertise, providing fastener system solutions.

We are willing to become your partner with first-class product quality,first-class service level and competitive price.

Main products:

Stainless steel 18-8,A2-70, A4-70 and A4-80 Hex head bolts,Hex socket head bolts and nuts.

Carbon steel and Alloy steel Hex head cap screws,Hex socket head screws, machine screws, self-tapping screws, Hex flange bolts and Structural bolts with coating Hot-dip galvanized, Dacromet, Blue-white zinc,Yellow zinc.

Product Application Areas:

Our fasteners are widely used in automobiles, ships, wind energy, solar energy, boiler, electronic appliances, machinery and equipment, and construction engineering.