Introduction to varieties and uses of bolts

Release time:

2023-01-17

Variety name, specification range, product grade, thread tolerance, mechanical properties, surface treatment

Introduction to varieties and uses of bolts

Serial Number	Name of variety with standard number	Specification range	Product grade	Thread tolerance	Mechanical properties or material ①	Surface treatment
1	Hexagon head bolt *	M5-M64	Class C	8g	Steel: 4.6\\4.8	A. without treatment B. Zinc plating purification
2	Hexagon head bolt -Full thread	M5-M64	Class C	Same as No. 1
3	Hexagon head bolt	M3-M64	Class A and B ②	6 g	Steel: 8.8\\10.9	A. Oxidation B. Zinc plating purification
3	Hexagon head bolt	M3-M64	Class A and B ②	6 g	Stainless poetry; d≤ 20; A2-70; 20	without treatment
4	Hexagon head bolt -Full thread	M3-M64	Class A and B ②	Same as No. 3
5	Hexagon head bolt -Thin Rod	M5-M20	Class B	6 g	Steel: 5.8\\6.8\\8.8	A. Oxidation B. Zinc plating purification C. Oxidation
5	Hexagon head bolt -Thin Rod	M5-M20	Class B	6 g	Stainless Poem; A2 - 70	without treatment
6	Hexagon head bolt -Fine teeth	M8 × 1 - M64 × 4	Class A and B ①	6 g	Steel: 8.8\\10.9	A. Oxidation B. Zinc plating purification
6	Hexagon head bolt -Fine teeth	M8 × 1 - M64 × 4	Class A and B ①	6 g	Stainless poetry: d≤ 20; A2-70; 20	without treatment
7	Hexagon head bolt -Fine teeth-Full thread	M8 × 1 - M64 × 4	Class A and B ②	Same as No. 6
8	Hex head with slot Bolt	M3-M12	Class A and B ②	Same as No. 6
9	Cross recessed hexagon head bolt	M4-M8	Class B	6 g	Steel; 5.8	A. without treatment B. Zinc plating purification
10	Hexagon head screw with hole Bolt	M6-M48	Class A and B ②	Same as No. 6
11	Hexagon head screw bolt with hole	M6-M20	Class B	6 g	Steel: 5.8\\6.8\\8.8	A. Oxidation B. Zinc plating purification C. Oxidation
11	Hexagon head screw bolt with hole	M6-M20	Class B	6 g	Stainless Poetry: A2 - 70	without treatment
12	Hex Head Screw Bolts with Holes-Fine Teeth	M8 × 1-M48× 3	Class A and B ②	6 g	Steel: 8.8\\10.9	A. Oxidation B. Zinc plating purification
12	Hex Head Screw Bolts with Holes-Fine Teeth	M8 × 1-M48× 3	Class A and B ②	6 g	Stainless poetry: d≤ 20; A2-70; 20	without treatment
13	Hex head with hole Bolt	M6-M48	Class A and B ②	Same as No. 12
14	Hex Head Holed Bolt-Thin Rod	M6-M20	Class B	6 g	Steel: 5.8\\6.8\\8.8	A. Oxidation B. Zinc plating purification C. Oxidation
14	Hex Head Holed Bolt-Thin Rod	M6-M20	Class B	6 g	Stainless Poetry: A2-70	without treatment
15	Hex Head Holed Bolt-Fine Tooth	M8 × 1-M48× 3	Class A and B ②	Same as No. 12
16	Hex head reamed hole bolt	M6-M48	Class A and B ②	6 g	Steel: 8.8	oxidation
17	Hexagon head screw bolt with hole for reaming	M6-M48	Class A and B	Same as No. 16
18	Hexagon flange bolt	M5-M16	Class B	6 g	Steel: 8.8\\12.9	A. Oxidation B. Zinc plating purification C. Oxidation
18	Hexagon flange bolt	M5-M16	Class B	6 g	Stainless Poetry: A2 - 70	without treatment
19	Hexagon flange face Bolt-Thin Rod	M5-M16	Class B	Same as No. 18
20	Hexagon flange face Bolt-enlarged series	M5-M20	Class B	6 g	Steel: 8.8\\12.9	A. Oxidation B. Zinc plating purification C. Oxidation
20	Hexagon flange face Bolt-enlarged series	M5-M20	Class B	6 g	Stainless Poetry: A2 - 70	without treatment
21	Hexagon flange face Bolt-enlarged Series-Thin Rod	M5-M20	Class B	Same as No. 18
22	Square head bolt	M10-M48	Class C	8 g	Steel: 4.8	A. without treatment B. Oxidation C. Zinc plating purification
23	Small square head bolt	M10-M48	Class B	6 g	Steel: 5.8\\8.8	A. without treatment B. Zinc plating purification
24	Round head square neck bolt	M6-M20	Class C	8 g	Steel: 3.6\\4.6\\4.8	A. without treatment B. Zinc plating purification
25	Round head square neck bolt	M6-M12	Class C	8 g	Steel: 3.6\\4.6	A. without treatment B. Oxidation C. Zinc plating purification
26	large semicircular head square neck Bolt *	M6-M24	Class C	8 g	Steel: 3.6\\4.8	A. untreated B. oxidation C. Zinc plating purification
27	Reinforcing half-round head square neck bolt *	M6-M20	Type A Grade B Type B Class C	Type A 6 g Type B 8 g	Steel: A type: 8.8 type B: 3.6\\4.8	Type A: Oxidized Type B: A. without treatment B. Oxidation
28	Half round head with tenon Bolt *	M6-M24	Class C	8 g	Steel: 3.6\\4.6\\4.8	A. without treatment B. Oxidation C. Zinc plating purification
29	Large semi-round head with tenon Bolt *	M6-M20	Class C	Same as No. 26
30	Countersunk head square neck bolt *	M6-M20	Class C	8 g	Steel: 3.6\\4.6\\4.8	A. without treatment B. Oxidation C. Zinc plating purification
31	Countersunk head with tenon Bolt *	M6-M24	Class C	Same as No. 30
32	Countersunk head double dowel bolt	M6-M12	Class C	8 g	Steel: 8.8	A. without treatment B. Oxidation C. Zinc plating purification
33	Bolt for T-slot	M5-M48	Class B	6 g	Steel: 8.8	A. Oxidation B. Zinc plating purification
34	Swing bolt *	M4-M36	Class C	8 g	Steel: 4.6\\5.6	A. without treatment B. Zinc plating purification
35	anchor bolt *	M6-M48	Class C	8 g	Steel: 3.6 ③	A. without treatment B. Oxidation C. Zinc plating purification

Note: 1, with * symbol varieties for commodity fastener varieties, should be preferred.
2. ① The mechanical properties specified in the table are applicable to thread specifications not greater than 39mm.
3. ② Grade A is used for bolts with d≤ and l≤ 10d or l≤ 150mm (according to the smaller value); Grade B is used for bolts with d>24 or l>10d or l>150mm (according to the smaller value).
4. ③ For structural reasons, wedge load and head rod bonding strength test shall not be carried out for anchor bolts.