TM 1-1500-204-23-6
Table 2-1. Bolt and Screw Markings - CONT
Classification or
Marking
Material
Physical characteristics
specification
Steel, corrosion-
Carbide solution treated
resistant (18Cr, 8Ni,
and strain hardened
columbium
TS: 125,000 psi min up to
AISI 1347, Grade B8C
stabilized)
3/4-inch dia inclusive
TS: 115,000 psi min over
3/4-inch and up to
ASTM A193
1-inch dia inclusive
ASTM A320
TS: 105,000 psi min over
1-inch and up to 1-1/4
inch dia inclusive
TS: 100,000 psi min over
1-1/4 inch and up to 1-1/2
inch dia inclusive
Steel, corrosion-
Annealed
resistant (16Cr, 18Ni),
condition: A
TS: 75,000 psi min
1/4 to 1-1/2 inch dia
inclusive
RH: B65-95
Headed and rolled
from annealed and
then reannealed
condition: AF
TS: 85,000 psi max
TS: 115,000 psi min over
3/4-inch and up to
1-inch dia inclusive
TS: 105,000 psi min over
1-inch and up to 1-1/4
inch dia inclusive
TS 100,000 psi min over
1-1 /4 inch and up to
1-1/2 inch dia inclusive
Annealed
TS: 75,000 psi min all dia
AISI 348, grade B8D
(A:320)
2-10
