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
AISI 304, grade B8
resistant (18Cr, 8Ni)
strain hardened
ASTM A193
TS: 125,000 psi min up to
ASTM A320
3/4-inch dia inclusive
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 and up to 1-1/2
inch dia inclusive
Steel, corrosion-
TS: 125,000 psi min
AMS 7472 (17-20 Cr, 7
resistant
Up to 0 75 inch
11 Ni) or AMS 5637,
SAE
dia inclusive
30302 (18Cr, 8NI)
Steel, corrosion-
Carbide solution treated
AISI 1347, Grade B8C
resistant (18Cr, 8NI,
in the finish condition
ASTM A193
columbium
TS: 75,000 psi min all dia
ASTM A320
stabilized)
Annealed
TS: 75,000 psi min all dia
AISI 1347, grade B8C
(A320)
Cold Drawn
TS: 125,000 psi min up to
3/4-inch dia inclusive
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
2-9
