TAP END STUD BOLTS
Dimensions per AWHEM** Standards
D Diameter – Nominal Stud Sizes
L Length – Measured end to end
T For 6B & 6BX studded flange
connections with R, RX & BX gaskets,
thread length maximum on end = 1
diameter + 1.5 pitch + 1/16-0
N Nut end thread length for 6B & 6BX
studded flange connections with R, RX &
Tap End Studs are available in ASTM A193 Grades of material or special materials. Sigma stocks the most frequently used sizes of tap end studs in ASTM A193 Grade B7. Tap end studs can also be plated or coated if allowances are made for coating thickness and thread fit.
When ordering, please specify:
Diameter (D); Length (L); End-to-end dimension. (If length is figured first thread to first thread, order must
so specify.)
Tap end thread length (T) and thread series
Nut end thread length (N) and thread series