Materials and Finishes:
           TypeFH,FHL,TFH,HFH:Heat-Treated Carbon Steel;Zinc plate.
           TypeFHS,FHLS,TFHS,HFHS:300 Series Stainless Steel;Passivation.
           TypeFH4:400 Series Stainless Steel;Passivaion.
           TypeHFHB:Phosphor Bronze QSn4-003;No Finish.

For Use In Sheet Hardness:
           TypeFH,FHL,TFH:HV160 or less
           TypeFHS,FHLS,TFHS,HFHS:HV130 or less
           TypeFH4:HV210 or less
           TypeHFHB:HV100 or less
           TypeHFH:HV 160 or less

Thread Size:
.086-56(#2-56),.112-40(#4-40),.138-32(#6-32),.164-32(#8-32),.190-24(#10-24),.190-32(#10-32),.250-20(1/4-20),.313-18(5/16-18)

Thread Size*Pitch:
M2.5*0.45  M3*0.5  M3.5*0.6  M4*0.7 M5*0.8  M6*1.0  M8*1.25