Class5 Zinc Plated Bolts And Nuts ASME ANSI B18 2.1 Bolts Hex Head Cap Screws

Drawing:

Hex bolts
ASME/ANSI B18.2.1-2010
d(ich)	ds(ich)		s(ich)		k(ich)		b(ich)
	min	max	min	max	min	max	L≤6	L>6
1/4	0.237	0.26	0.425	0.438	0.15	0.188	0.75	1
5/16	0.298	0.324	0.484	0.5	0.195	0.235	0.875	1.125
3/8	0.36	0.388	0.544	0.562	0.226	0.268	1	1.25
7/16	0.421	0.452	0.603	0.625	0.272	0.316	1.125	1.375
1/2	0.482	0.515	0.725	0.75	0.302	0.364	1.25	1.5
5/8	0.605	0.642	0.905	0.938	0.378	0.444	1.5	1.75
3/4	0.729	0.768	1.088	1.125	0.455	0.524	1.75	2
7/8	0.852	0.895	1.269	1.312	0.531	0.604	2	2.25
1	0.976	1.022	1.45	1.5	0.591	0.7	2.25	2.5
1-1/8	1.098	1.149	1.631	1.688	0.658	0.78	2.5	2.75
1-1/4	1.223	1.277	1.812	1.875	0.749	0.876	2.75	3
1-3/8	1.345	1.404	1.994	2.062	0.81	0.94	3	3.25
1-1/2	1.47	1.531	2.175	2.25	0.902	1.036	3.25	3.5
1-5/8	1.591	1.658	2.356	2.438	0.978	1.116	3.5	3.75
1-3/4	1.716	1.785	2.538	2.625	1.054	1.196	3.75	4
1-7/8	1.839	1.912	2.719	2.812	1.13	1.276	4	4.25
2	1.964	2.039	2.9	3	1.175	1.388	4.25	4.5
2-1/4	2.214	2.305	3.262	3.375	1.327	1.548	/	5
2-1/2	2.461	2.559	3.625	3.75	1.479	1.708	/	5.5
2-3/4	2.711	2.827	3.988	4.125	1.632	1.869	/	6
3	2.961	3.081	4.35	4.5	1.815	2.06	/	6.5
3-1/4	3.21	3.335	4.712	4.875	1.936	2.251	/	7
3-1/2	3.461	3.589	5.075	5.25	2.057	2.38	/	7.5
3-3/4	3.726	3.858	5.437	5.625	2.241	2.572	/	8
4	3.975	4.111	5.8	6	2.424	2.764	/	8.5

Medium-Strength Grade 5 Steel Hex Head Screws

Made from Grade 5 steel, these screws are suitable for fastening most machinery and equipment. Dimensions meet ASME B18.2.1 specifications. Grade 5 steel hex head screws are marked with three radial lines. Length is measured from under the head.

Black-oxide steel screws are mildly corrosion resistant in dry environments. Zinc-plated steel screws resist corrosion in wet environments. Black ultra-corrosion-resistant-coated steel screws resist chemicals and withstand 1,000 hours of salt spray per ASTM B117. To maintain corrosion resistance, use these screws with black ultra-corrosion-resistant-coated nuts and washers.

Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance.

Screws that meet ASTM A449 or SAE J429 comply with specifications and testing requirements for material quality.

Mechanical Properties:

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.