DIN 931 Hexagon head half thread bolts

Short Description:

DIN 931 is a hexagonal head bolt with partial thread, high strength and durability. Suitable for various equipment structures and mechanical connections. Made of high-quality steel, in line with German standards. DIN 931 half-thread bolts are widely used in buildings, elevators, mechanical equipment and bridges to provide them with fixed and reliable support.

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Product dimensions, standard technical specifications

Metric DIN 931 Half-thread Hexagon Head Screw Dimensions

Metric DIN 931 Half Thread Hexagon Head Screw Weights

Thread D	M27	M30	M33	M36	M39	M42	M45	M48
L (mm)	Weight in Kg(s)/1000pcs
80	511
90	557	712
100	603	767	951
110	650	823	1020	1250	1510
120	695	880	1090	1330	1590	1900	2260
130	720	920	1150	1400	1650	1980	2350	2780
140	765	975	1220	1480	1740	2090	2480	2920
150	810	1030	1290	1560	1830	2200	2600	3010
160	855	1090	1350	1640	1930	2310	2730	3160
180	945	1200	1480	1900	2120	2520	2980	3440
200	1030	1310	1610	2060	2310	2740	3220	3720
220	1130	1420	1750	2220	2500	2960	3470	4010
240		1530	1880	2380	2700	3180	3720	4290
260		1640	2020	2540	2900	3400	3970	4570
280		1750	2160	2700	2700	3620	4220	1850
300		1860	2300	2860	2860	3840	4470	5130

Thread D	S	E	K	L ≤ 125	B 25 < L ≤ 200	L > 200
M4	7	7.74	2.8	14	20
M5	8	8.87	3.5	16	22
M6	10	11.05	4	18	24
M8	13	14.38	5.5	22	28
M10	17	18.9	7	26	32	45
M12	19	21.1	8	30	36	49
M14	22	24.49	9	34	40	53
M16	24	26.75	10	38	44	57
M18	27	30.14	12	42	48	61
M20	30	33.14	13	46	52	65
M22	32	35.72	14	50	56	69
M24	36	39.98	15	54	60	73
M27	41	45.63	17	60	66	79
M30	46	51.28	19	66	72	85
M33	50	55.8	21	72	78	91
M36	55	61.31	23	78	84	97
M39	60	66.96	25	84	90	103
M42	65	72.61	26	90	96	109
M45	70	78.26	28	96	102	115
M48	75	83.91	30	102	108	121

Thread D	M4	M5	M6	M8	M10	M12	M14	M16	M18
L (mm)	Weight in Kg(s)/1000pcs
25	3.12
30		5.64	8.06
35		6.42	9.13	18.2
40		7.2	10.2	20.7	35
45		7.98	11.3	22.2	38	53.6
50		8.76	12.3	24.2	41.1	58.1	82.2
55		9.54	13.4	25.8	43.8	62.6	88.3	115
60		10.3	14.4	29.8	46.9	67	94.3	123	161
65		11.1	15.5	29.8	50	70.3	100	131	171
70		11.9	16.5	31.8	53.1	74.7	106	139	181
75		12.7	17.6	33.7	56.2	79.1	112	147	191
80		13.5	18.6	35.7	62.3	83.6	118	155	201
90			20.8	39.6	68.5	92.4	128	171	220
100				43.6	77.7	100	140	186	240
110				47.5	83.9	109	152	202	260
120					90	118	165	218	280
130					96.2	127	175	230	295
140					102	136	187	246	315
150					108	145	199	262	335

Thread D	M12	M14	M16	M18	M20	M22	M24
L (mm)	Weight in Kg(s)/1000pcs
80					255	311	382
90					279	341	428
100					303	370	464
110					327	400	500
120					351	430	535
130					365	450	560
140					389	480	595
150					423	510	630
160	153	211	278	355	447	540	665
170	162	223	294	375	470	570	700
180	171	235	310	395	495	600	735
190	180	247	326	415	520	630	770
200	189	260	342	435	545	660	805
210	198	273	358	455	570	690	840
220	207	286	374	475	590	720	870
230			390	495	615	750	905
240			406	515	640	780	940
250			422	535	665	810	975
260			438	555	690	840	1010
280						900	1080
300						960	1150
320						1020	1270
340						1080	1340
350						1110	1375
360						1140	1410

Quality Management

Vickers Hardness Instrument

Profile Measuring Instrument

Spectrograph Instrument

Three Coordinate Instrument

Common materials for DIN series fasteners

DIN series fasteners are not limited to stainless steel, they can be made from a variety of metal materials. Common manufacturing materials for DIN series fasteners include:

Stainless steel
Suitable for applications where corrosion resistance is required, such as outdoor equipment, chemical equipment, and food processing industries. Common models are 304 and 316 stainless steel.

Carbon steel
Carbon steel fasteners have high strength and relatively low cost, and are suitable for applications such as machinery and construction where corrosion resistance is not required. Carbon steel of different strength grades can be selected according to specific applications.

Alloy steel
Used in applications requiring higher strength and wear resistance, in high-stress mechanical connections, it is usually heat treated to increase its strength.

Brass and copper alloys
Because brass and copper alloys have good electrical conductivity and corrosion resistance, fasteners made from them are more common in electrical equipment or decorative applications. The disadvantage is lower strength.

Galvanized steel
Carbon steel is galvanized to increase its corrosion resistance, which is a common choice and is particularly suitable for use outdoors and in humid environments.

What are your transportation methods?

We offer the following transportation methods for you to choose from:

Sea transportation
Suitable for bulk goods and long-distance transportation, with low cost and long transportation time.

Air transportation
Suitable for small goods with high timeliness requirements, fast speed, but relatively high cost.

Land transportation
Mostly used for trade between neighboring countries, suitable for medium and short-distance transportation.

Rail transportation
Commonly used for transportation between China and Europe, with time and cost between sea transportation and air transportation.

Express delivery
Suitable for small urgent goods, with high cost, but fast delivery speed and convenient door-to-door delivery.

Which transportation method you choose depends on your cargo type, timeliness requirements and cost budget.