Hexagon Head Bolts-black

Black hexagon head bolts offer durable and corrosion-resistant fastening solutions for a variety of applications, with options available in different sizes and suitable for both metric and inch-based systems.

Model:ASME B 18.2.1

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Product Description

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Black Hexagon Head Bolts: These bolts feature a hexagonal head and are coated with a black finish, typically achieved through processes like black oxide coating or black zinc plating.

Corrosion Resistance: The black coating not only provides an aesthetic appeal but also enhances the bolts' resistance to corrosion, making them suitable for outdoor and high-moisture environments.

Durable Fastening: Hexagon head bolts offer a strong and durable fastening solution, capable of withstanding high loads and pressures in various applications.

Wide Range of Sizes: Available in a wide range of sizes and thread pitches, black hexagon head bolts can accommodate different requirements for fastening various materials and components.

Versatile Applications: These bolts find applications in automotive, construction, machinery, and other industries where a combination of strength, corrosion resistance, and aesthetics is required.

Metric and Inch Sizes: Black hexagon head bolts are available in both metric and inch sizes, ensuring compatibility with different fastening systems and preferences.

Screw Thread
d

1/4

5/16

3/8

7/16

1/2

5/8

3/4

7/8

1-1/8

1-1/4

1-3/8

PP
d_s	max
	min
s	max
	min
e	max
	min
k	max
	min
r	max
	min
b	L≤6
	L＞6

20	18	16	14	13	11	10	9	8	7	7	6
0.260	0.324	0.388	0.452	0.515	0.642	0.768	0.895	1.022	1.149	1.277	1.404
0.237	0.298	0.360	0.421	0.482	0.605	0.729	0.852	0.976	1.098	1.223	1.345
0.438	0.500	0.562	0.625	0.750	0.938	1.125	1.312	1.500	1.688	1.875	2.062
0.425	0.484	0.544	0.603	0.725	0.906	1.088	1.269	1.450	1.631	1.812	1.994
0.505	0.577	0.650	0.722	0.866	1.083	1.299	1.516	1.732	1.949	2.165	2.382
0.484	0.552	0.620	0.687	0.826	1.033	1.240	1.447	1.653	1.859	2.066	2.273
0.188	0.235	0.268	0.316	0.364	0.444	0.524	0.604	0.700	0.780	0.876	0.940
0.150	0.195	0.226	0.272	0.302	0.378	0.455	0.531	0.591	0.658	0.749	0.810
0.030	0.030	0.030	0.030	0.030	0.060	0.060	0.060	0.090	0.090	0.090	0.090
0.010	0.010	0.010	0.010	0.010	0.020	0.020	0.020	0.030	0.030	0.030	0.030
0.750	0.875	1.000	1.125	1.250	1.500	1.750	2.000	2.250	2.500	2.750	3.000
1.000	1.125	1.250	1.375	1.500	1.750	2.000	2.250	2.500	2.750	3.000	3.250

Screw Thread
d

1-1/2

1-3/4

2-1/4

2-1/2

2-3/4

3-1/4

3-1/2

3-3/4

PP
d_s	max
	min
s	max
	min
e	max
	min
k	max
	min
r	max
	min
b	L≤6
	L＞6

6	5	4.5	4.5	4	4	4	4	4	4	4
1.531	1.785	2.039	2.305	2.559	2.827	3.081	3.335	3.589	3.858	4.111
1.470	1.716	1.964	2.214	2.461	2.711	2.961	3.210	3.461	3.726	3.975
2.250	2.625	3.000	3.375	3.750	4.125	4.500	4.875	5.250	5.625	6.000
2.175	2.538	2.900	3.262	3.625	3.988	4.350	4.712	5.075	5.437	5.800
2.598	3.031	3.464	3.897	4.330	4.763	5.196	5.629	6.062	6.495	6.928
2.480	2.893	3.306	3.719	4.133	4.546	4.959	5.372	5.786	6.198	6.612
1.036	1.196	1.388	1.548	1.708	1.869	2.060	2.251	2.380	2.572	2.764
0.902	1.054	1.175	1.327	1.479	1.632	1.815	1.936	2.057	2.241	2.424
0.090	0.120	0.120	0.190	0.190	0.190	0.190	0.190	0.190	0.190	0.190
0.030	0.040	0.040	0.060	0.060	0.060	0.060	0.060	0.060	0.060	0.060
3.250	3.750	4.250	4.750	5.250	5.750	/	/	/	/	/
3.500	4.000	4.500	5.000	5.500	6.000	6.500	7.000	7.500	8.000	8.500