Ground Heavy Spring Pins, Type SG

Dimensions in inches

Material: High quality spring steel AISI 6150 according to DIN 1.8159 hardened to 42 to 50 HRC.

Nominal diameter
 0.125
0.187
0.250
0.312
0.375
0.437
0.500
0.625
0.750
0.875
1.000
1.125
1.250
 
Recommended Housing Bore Tolerance
 -0, +.0007
-0, +.0007
-0, +.0009
-0, +.0009
-0, +.0009
-0, +.001
-0, +.001
-0, +.001
-0, +.0012
-0, +.0012
-0, +.0012
-0, +.0012
-0, +.0016
 
S
 0.028
0.035
0.046
0.056
0.071
0.072
0.090
0.115
0.144
0.175
0.188
0.209
0.230
 
min d1
0.131
0.194
0.258
0.321
0.383
0.445
0.508
0.635
0.760
0.885
1.010
1.135
1.260
max d1
0.133
0.196
0.260
0.323
0.385
0.448
0.511
0.637
0.763
0.888
1.013
1.138
1.264
 
Before insertion d2
 0.074
0.120
0.163
0.205
0.236
0.299
0.323
0.400
0.468
0.531
0.630
0.713
0.798
 
Minimum shear in Lbs
 3)
  
in single shear
 633
1,312
2,219
3,483
5,242
6,339
8,882
13,823
20,305
28,325
35,262
44,077
53,743
in double shear
 1,266
2,624
4,438
6,965
10,483
12,677
17,764
27,646
40,609
56,650
70,523
88,153
107,486
Weight in pounds per 1000 pcs. per 1 inch length
 2.21
4.42
7.90
 11.96
17.81
22.25
30.94
49.49
73.74
103.33
129.74
163.11
200.61
Length Tolerance of deviation
The nominal diameter is equal to the insertion bore, tolerence H8
 0.250
 -0.012
                          
0.375
                            
0.500
                            
0.625
                            
0.750
                            
1.000
                            
1.250
                            
1.500
                            
1.750
                            
2.000
 -0.020
                          
2.250
                          
2.500
          
Standard dimensions
        
2.750
                            
3.000
                            
3.250
                            
3.500
                            
3.750
                            
4.000
                            
4.250
                            
 4.500
                            
4.750
                            
5.000
                            
5.250
                            
5.500
                            
5.750
                            
6.000
                            


Notes on the Measurement Tables

1) In smaller diameter pins the chamfer is applied on the strip and may change when being formed.

2) The length is measured along the face directly opposite the slot.

3) Shear values are laboratory determined, without safety factor consideration.

Shear values given in the CONNEX measurement tables were established using single or double shear testing devices as indicated in the diagrams. They apply to the pins of material AISI 6150, DIN 1.8159. The parts of the shearing device were hardened.

In comparison to the application of spring pins in practice, shear tests in the laboratory are carried out under ideal conditions. There is only minimum play between the shear block and side pieces so that the pin to be sheared does not undergo additional blending stress.

Other dimensions upon request.

The Connex® Principle

Spring Pins - Standard and Ground

Spring Pin Properties

Shear Resistance and Material Strength

Heavy Spring Pins (Inch Sizes), Type S

Ground Heavy Spring Pins (Inch Sizes), Type SG

Heavy Spring Pins (Metric Sizes), Type S

Examples of Applications Using Connex® Spring Pins

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