TM 1-1500-204-23-6
Table 2-1. Bolt and Screw Markings - CONT
Classification or
Marking
Material
Physical characteristics
specification
Steel, corrosion-
TS: 75,000 psi min
MIL-S-1222
resistant
1/4 inch and
NAS 380
over dia
NAS 1347
RH: B95 max
Annealed
TS: 105,000 psi min
1/4 inch and over dia
Cold Washed
TS: 90,000 psi min
over 3/4 inch dia
Steel, corrosion-
TS: 70,000 psi min
No 410, annealed
resistant
TS: 75,000 psi min
QQ-S-763, Class
202, 300 series
of stainless steel
or (18-8)
Steel, corrosion-
Carbide solution treated
AISI 304, grade B8
resistant (18Cr, 8NI)
TS: 75,000 psi min all dia
ASTM A193
Carbide solution treated
AISI 304, grade B8
TS: 75,000 psi min all dia
ASTM A320
Cold Drawn
TS: 125,000 psi min up to
AISI 304, grade B8
3/4-inch dia inclusive
(A320)
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 dia inclusive
See footnote at end of table
2-8
