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ASTM.B0557.20
SHOULDER-END SPECIMENS GRIPS WITH STANDARD 0.505" DIAMETER SPECIMEN INSERTS
Model No. ASTM.B0557.20

Specimen:




Fixture:
Reduced Section
Shank Diameter
Chamfer
Bottom Head Dia.

Construction
Supplied Insert
Temperature
Mounting
Capacity
Weight
Dimensions
Standard
0.505"
0.625"
Cham. 1/16 x 45°
Up to 1.0"

High Strength Steel with Protective Black Oxide Oil Finish
Insert No. A380.20.A
-20°F (-30°C) to 250°F (120°C)
1”-14 threaded ends
20,000 lb. (90kN)
20 lb.  approximately
Assembled - 3” X 3” X 12”
Manufactured in accordance with: ASTM B557
Optional Inserts Available

Insert No.
Reduced
Section
Chamfer/
Radius
Shank Hole
Diameter
B557.20.A
0.505"
0.062"x45°
0.630"/0.635"
B557.20.B
0.252"
0.062"x45°
0.322"/0.327"
B557.20.D
0.357"
0.062"x45°
0.437"/0.442"
B557.20.E
0.505"
0.125R
0.626"/0.627"
B557.20.F
0.252"
None
0.380"/0.382
B557.20.G
0.350"
0.062"x45°
0.505"/0.515"
B557.20.H
0.500"
0.062"x45°
0.642"/0.647"
B557.20.J
0.357"
0.032"x45°
0.430"/0.432"
B557.20.K
0.357"
0.045"x45°
0.440"
B557.20.L
0.252"
0.062"x45°
0.320"/0.321"
B557.20.M
0.250"
None
0.314"/0.315"
B557.20.N
0.250"
0.062"x45°
0.305"/0.307"
B557.20.P
***
0.031"x45°
0.558"/0.568"
B557.20.Q
0.350"
0.062"x45°
0.505"/0.510"
B557.20.R
0.250"
0.062"x45°
0.359"/0.560"
B557.20.S
***
0.031"x45°
0.553"/0.573"
B557.20.T
0.252"
0.045"x45°
0.316"
B557.20.U
0.505"*
0.063"R
0.630"/0.635"
B557.20.V
0.252"*
0.183"R
0.282"/0.283"
B557.20.W
0.357"*
0.062"R
0.410"
B557.20.X
0.252"*
0.062"R
0.306"
B557.20.Z
0.505"*
0.062"x45°
0.402"/0.407"
B557.20.AA
0.500"*
0.125"R
0.618"/0.619"
B557.20.BB
0.500"*
0.054"x30°
0.605"/0.610"
A048.20A
0.505"*
0.062"R
0.635"/0.640"
A048.20.B
0.750"*
0.062"R
0.943"/0.948"
A048.20.C
1.250"*
0.062"R
1.003"/1.005"


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