FLANGES
STAINLESSS STEEL FLANGES
CARBON STEEL FLANGES
PP FLANGES
JOINT
RUBBER EXPANSION JOINTS
UNION JOINT
DISMANTLING JOINT
PIPE ANTI-CORROSION
PETROLATUM TAPE
PVC TAPE
WATER PROOF TAPE
VALVES
IRON GATE VALVES
BUTTERFLY VALVES
CHECK VALVES
STANLESS STEEL BALL VALVES
PIPE FITTINGS
BW CARBON STEE FITTINGS
STAINLESS STEEL FITTINGS
FASTENERS
BOLTS
NUTS
OTHERS
CASTING ACCESSORY
MACHINERY PARTS
CASHMERE PRODUCTS

BOLTS

HEX HEAD BOLTS DIN931
HEX HEAD BOLTS DIN931

Standard:           DIN931

Material grade:  4.8,6.8,8.8

Size:                    M6-M45   

Material:             Carbon steel   

Rust treatment: black,galvanized



Technical Specifications:

GradeThread sizeMaterialThe tensile

 strength

(Mpa)

Hardness
(HJRC)

Elongation rate

 %

Cross section reduction rate ψ%
4.8d≤M1625# 45022-321248
6.8M18≤d≤M2435#、45#80022-321252
8.8d≥M2740Cr83024-341252
10.9All dimensions40Cr、35CrMoA104032-29948
12.9All dimensions35CrMoA  42CrMoA104039-44844

Dimensions:

Nominal diameter dThread distancebdsks
Ls≤125125<L≤200L>200min Amin Bnominalmin Amin Bnominalmin Amin B
M40.714
    -3.82
2.82.68
76.78
M50.816.022    -4.82
3.53.35
87.78
M611824    -5.82
43.85
109.78
M81.252228    -7.78
5.35.15
1312.73
M101.252632459.78
6.46.226.111716.73
M121.7530364911.73
7.57.327.211918.67
M14234405313.73
8.88.628.512221.67
M16238445715.7315.57109.829.712423.6723.16
M182.542486117.7317.5711.511.2811.152726.6726.16
M202.546526519.6719.4812.512.2812.153029.6729.16
M222.250
56
6921.6721.481413.7813.653231.6131.00
M24354607323.6723.481514.7814.653635.3835.00
M273606679
26.4817
16.6541
40.00
M303.5667285
29.4818.7
18.2846
45.00
M333.5727891
32.3821
20.5850
49.00
M364788497
35.3822.5
22.0855
53.80
M3948490103
38.3825
24.5860
58.80
M4259096109
41.6126.00
25.5865
63.10
M45596102115
44.3828.00
27.5870
68.10
M485102108121
47.3830.0
29.875
73.10
M525/116129
51.2633.0
32.580
78.10
M586/124137
55.26

34.585
82.80
M606/112145
59.26

37.590
87.80





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