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DSE BOLTS undertakes a wide range of manufacturing processes enabling us to provide exactly the right type of bolting to suit your needs.

Manufacturing Processes

Common Dimensional Standards

Bolts:

  • ANSI B18-2-1
  • DIN 931 + DIN 933
  • ISO 4014 + 4017
  • BS1768 + BS1769 + BS1083

Nuts:

  • ISO 4014 + 4017
  • DIN 934Z
  • ISO 4032
  • BS1768 + BS1769 + BS1083

Studbolts:

  • DIN 975
  • DIN 976
  • BS4882
  • ANSI B16-5

Socket Screws:

  • DIN 912 BS2470
  • DIN 913
  • DIN 914 DIN 7991
  • DIN 915
  • DIN 916

Engineer Studs :

  • DIN 938
  • DIN 939

Washers:

  • DIN 125
  • DIN 127
Hardness and Strength Grade Comparison Chart
(showing imperial bolt grades and their approximate metric equivalents)
Imperial
Quality		 Tonf/in2
Tensile		 HRC BHN BHN HRC Tonf/in2
Tensile		 N/mm2 Metric
Quality
110/170 - / 0 25.4/34.9 392/539 4.6/4.8
P 35-45 0/16 152/207 140/215 4/16 31.8/44.5 490/686 5.6/5.8
Q 40-50 09/21 183/229 170/245 6/21 38.1/50.8 588/785 6.6/6.8
R 45-55 16/25 207/255 - - - - -
S 50-60 21/29 229/277 225/300 18/31 50.8/63.5 785/981 8,8
T 55-65 25/32 255/302 - - - - -
U 60-70 29/34 277/321 - - - - -
V
 65-75 32/37 293/352 280/365 31/38 63.5/76.2 981/1177 10,9
W 70-80 34/39 321/363 - - - - -
X 75-85 36/41 341/388 330/425 37/42 76.2/88.9 1177/1373 12,9
Y 38/44 363/415 - - - - -
- - - - -
390 min 42/47 1373/1569 14,9
Processes
  • Hot Forming
  • Hot Forming
  • Thread Cutting
  • Thread Rolling
  • Milling
  • Drilling
  • Broaching
  • Slotting
  • Grinding
Thread Forms
  • Metric Course
  • Metric fine
  • UNC
  • UNS
  • UN8
  • UNF
  • UNEF
  • BA
  • BSF
  • BSP
  • NPT
Size Ranges
  • M5 up to M150
  • ¼” to 6”