Heavy Hex Bolts

Heavy hex bolts provide high strength and reliability for structural applications, with a larger head size and increased bearing surface ensuring secure fastening in demanding environments.

Model:ASME B 18.2.1

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Product Description

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Heavy Hex Bolts: These bolts feature a larger and thicker head compared to standard hex bolts, providing a larger bearing surface and higher tensile strength.

High Strength: Designed to withstand heavy loads and high-stress environments, heavy hex bolts are commonly used in structural applications such as bridges, buildings, and machinery.

Increased Bearing Surface: The larger head size of heavy hex bolts distributes the clamping force over a larger area, reducing the risk of material deformation and ensuring a secure and stable connection.

Available in Various Materials: Heavy hex bolts are available in a variety of materials, including carbon steel, alloy steel, and stainless steel, allowing for compatibility with different environmental conditions and corrosion resistance requirements.

Wide Range of Sizes: From small-scale projects to large-scale construction, heavy hex bolts come in various sizes, thread pitches, and lengths to accommodate different application needs.

Corrosion Resistance: Depending on the material chosen, heavy hex bolts can offer excellent corrosion resistance, making them suitable for outdoor applications or environments exposed to harsh elements.

Nominal Diameter
d

1/2

5/8

3/4

7/8

1-1/8

1-1/4

1-3/8

1-1/2

1-3/4

2-1/4

2-1/2

2-3/4

d_s	max
	min
s	Basic
	max
	min
e	max
	min
k	Basic
	max
	min
r	max
	min
b	L≤6
	6＜L

0.515	0.642	0.768	0.895	1.022	1.149	1.277	1.404	1.531	1.785	2.039	2.305	2.559	2.827	3.081
0.482	0.605	0.729	0.852	0.976	1.098	1.223	1.345	1.470	1.716	1.964	2.214	2.461	2.711	2.961
7/8	1-1/16	1-1/4	1-7/16	1-5/8	1-13/16	2	2-3/16	2-3/8	2-3/4	3-1/8	3-1/2	3-7/8	4-1/4	4-5/8
0.875	1.062	1.250	1.438	1.625	1.812	2.000	2.188	2.375	2.750	3.125	3.500	3.875	4.250	4.625
0.850	1.031	1.212	1.394	1.575	1.756	1.938	2.119	2.300	2.662	3.025	3.388	3.750	4.112	4.475
1.010	1.227	1.443	1.660	1.876	2.093	2.309	2.526	2.742	3.175	3.608	4.041	4.474	4.907	5.340
0.969	1.175	1.383	1.589	1.796	2.002	2.209	2.416	2.622	3.035	3.449	3.862	4.275	4.688	5.102
11/32	27/64	1/2	37/64	43/64	3/4	27/32	29/32	1	1-5/32	1-11/32	1-1/2	1-21/32	1-13/16	2
0.364	0.444	0.524	0.604	0.700	0.780	0.876	0.940	1.036	1.196	1.388	1.548	1.708	1.869	2.060
0.302	0.378	0.455	0.531	0.591	0.658	0.749	0.810	0.902	1.054	1.175	1.327	1.479	1.632	1.815
0.030	0.060	0.060	0.060	0.090	0.090	0.090	0.090	0.090	0.120	0.120	0.190	0.190	0.190	0.190
0.010	0.020	0.020	0.020	0.030	0.030	0.030	0.030	0.030	0.040	0.040	0.060	0.060	0.060	0.060
1.250	1.500	1.750	2.000	2.250	2.500	2.750	3.000	3.250	3.750	4.250	4.750	5.250	5.750	6.250
1.500	1.750	2.000	2.250	2.500	2.750	3.000	3.250	3.500	4.000	4.500	5.000	5.500	6.000	6.500