Product Categories Screws and Bolts Cap Screws / Alloy Steel Thread-Locking Socket Head Screws

Alloy Steel Thread-Locking Socket Head Screws

168 Products
Alloy Steel Thread-Locking Socket Head Screws Alloy Steel Thread-Locking Socket Head Screws With a tensile strength of 170,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and are nearly two and a half times stronger than stainless steel thread-locking screws. They have a thread locker to prevent loosening from vibration.
Part Number
Thread
Size
Threading
Length
Thread
Type
Head
Diameter
Drive Size
Tensile
Strength
Material
Specifications
Met
Price
JBCAFAADA
0-80
Fully Threaded
1/8"
UNF
0.096"
0.05"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.70
JBCAFAADD
0-80
Fully Threaded
3/16"
UNF
0.096"
0.05"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.72
JBCAFAADG
0-80
Fully Threaded
1/4"
UNF
0.096"
0.05"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.72
JBCAFAAFA
2-56
Fully Threaded
1/8"
UNC
9/64"
5/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 4.86
JBCAFAAFD
2-56
Fully Threaded
3/16"
UNC
9/64"
5/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 4.76
JBCAFAAGA
2-56
Fully Threaded
1/4"
UNC
9/64"
5/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.76
JBCAFAAGD
2-56
Fully Threaded
3/8"
UNC
9/64"
5/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.79
JBCAFAAGG
2-56
Fully Threaded
1/2"
UNC
9/64"
5/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.82
JBCAFAAGJ
2-56
Fully Threaded
3/4"
UNC
9/64"
5/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.07
JBCAFAAHC
2-56
Partially Threaded
1"
UNC
9/64"
5/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.20
JBCAFABAB
4-40
Fully Threaded
1/8"
UNC
0.183"
3/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.80
JBCAFABAC
4-40
Fully Threaded
3/16"
UNC
0.183"
3/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.69
JBCAFABAF
4-40
Fully Threaded
1/4"
UNC
0.183"
3/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.03
JBCAFABAI
4-40
Fully Threaded
3/8"
UNC
0.183"
3/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.07
JBCAFABBA
4-40
Fully Threaded
1/2"
UNC
0.183"
3/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.15
JBCAFABBC
4-40
Fully Threaded
3/4"
UNC
0.183"
3/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.24
JBCAFABBF
4-40
Partially Threaded
1"
UNC
0.183"
3/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.52
JBCAFABCA
5-40
Fully Threaded
3/8"
UNC
0.205"
3/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.68
JBCAFABCE
5-40
Fully Threaded
1/2"
UNC
0.205"
3/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.86
JBCAFABEB
6-32
Fully Threaded
1/8"
UNC
0.226"
7/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.75
JBCAFABEC
6-32
Fully Threaded
3/16"
UNC
0.226"
7/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.42
JBCAFABEE
6-32
Fully Threaded
1/4"
UNC
0.226"
7/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 4.97
JBCAFABEG
6-32
Fully Threaded
3/8"
UNC
0.226"
7/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.04
JBCAFABEI
6-32
Fully Threaded
1/2"
UNC
0.226"
7/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.14
JBCAFABFA
6-32
Fully Threaded
5/8"
UNC
0.226"
7/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.22
JBCAFABFB
6-32
Fully Threaded
3/4"
UNC
0.226"
7/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.30
JBCAFABFC
6-32
Fully Threaded
7/8"
UNC
0.226"
7/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.32
JBCAFABFD
6-32
Fully Threaded
1"
UNC
0.226"
7/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.68
JBCAFABFG
6-32
Partially Threaded
1 1/2"
UNC
0.226"
7/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.74
JBCAFABFI
6-32
Partially Threaded
2"
UNC
0.226"
7/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 4.01
JBCAFABJB
8-32
Fully Threaded
1/4"
UNC
0.27"
9/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.18
JBCAFABJC
8-32
Fully Threaded
3/8"
UNC
0.27"
9/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.24
JBCAFABJE
8-32
Fully Threaded
1/2"
UNC
0.27"
9/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.32
JBCAFABJF
8-32
Fully Threaded
5/8"
UNC
0.27"
9/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.41
JBCAFABJH
8-32
Fully Threaded
3/4"
UNC
0.27"
9/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.49
JBCAFABJI
8-32
Fully Threaded
7/8"
UNC
0.27"
9/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.68
JBCAFABJD
8-32
Fully Threaded
1"
UNC
0.27"
9/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.06
JBCAFACAB
8-32
Partially Threaded
1 1/4"
UNC
0.27"
9/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.15
JBCAFACAD
8-32
Partially Threaded
1 1/2"
UNC
0.27"
9/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.58
JBCAFACAF
8-32
Partially Threaded
2"
UNC
0.27"
9/64"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.97
JBCAFACDI
10-24
Fully Threaded
1/4"
UNC
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.94
JBCAFACEA
10-24
Fully Threaded
3/8"
UNC
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.45
JBCAFACEC
10-24
Fully Threaded
1/2"
UNC
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.49
JBCAFACEE
10-24
Fully Threaded
5/8"
UNC
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.64
JBCAFACEF
10-24
Fully Threaded
3/4"
UNC
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.73
JBCAFACEG
10-24
Fully Threaded
7/8"
UNC
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.14
JBCAFACEH
10-24
Fully Threaded
1"
UNC
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.18
JBCAFACEI
10-24
Partially Threaded
1 1/2"
UNC
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.06
JBCAFACFC
10-24
Partially Threaded
2"
UNC
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 4.00
JBCAFADDI
10-32
Fully Threaded
1/4"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.94
JBCAFADEA
10-32
Fully Threaded
3/8"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.45
JBCAFADEC
10-32
Fully Threaded
1/2"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.49
JBCAFADEE
10-32
Fully Threaded
5/8"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.64
JBCAFADEF
10-32
Fully Threaded
3/4"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.73
JBCAFADEG
10-32
Fully Threaded
7/8"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.94
JBCAFADEH
10-32
Fully Threaded
1"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.18
JBCAFADEJ
10-32
Partially Threaded
1 1/4"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.38
JBCAFADFB
10-32
Partially Threaded
1 1/2"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.84
JBCAFADFD
10-32
Partially Threaded
1 3/4"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.11
JBCAFADFF
10-32
Partially Threaded
2"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.42
JBCAFADFH
10-32
Partially Threaded
2 1/2"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 4.30
JBCAFADFJ
10-32
Partially Threaded
3"
UNF
5/16"
5/32"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 4.73
JBCAFAFDB
1/4"-20
Fully Threaded
1/4"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.96
JBCAFAFDD
1/4"-20
Fully Threaded
5/16"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.20
JBCAFAFDF
1/4"-20
Fully Threaded
3/8"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.74
JBCAFAFDG
1/4"-20
Fully Threaded
7/16"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.55
JBCAFAFDH
1/4"-20
Fully Threaded
1/2"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.88
JBCAFAFDI
1/4"-20
Fully Threaded
9/16"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.91
JBCAFAFDJ
1/4"-20
Fully Threaded
5/8"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.93
JBCAFAFEA
1/4"-20
Fully Threaded
3/4"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.02
JBCAFAFEB
1/4"-20
Fully Threaded
7/8"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.23
JBCAFAFEC
1/4"-20
Fully Threaded
1"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.46
JBCAFAFEE
1/4"-20
Fully Threaded
1 1/4"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.65
JBCAFAFEG
1/4"-20
Partially Threaded
1 1/2"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.10
JBCAFAFEI
1/4"-20
Partially Threaded
1 3/4"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.38
JBCAFAFFA
1/4"-20
Partially Threaded
2"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.72
JBCAFAGHF
1/4"-20
Partially Threaded
2 1/4"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.04
JBCAFAFFC
1/4"-20
Partially Threaded
2 1/2"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.88
JBCAFAFFE
1/4"-20
Partially Threaded
3"
UNC
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 4.74
JBCAFAFGA
1/4"-28
Fully Threaded
1/2"
UNF
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.88
JBCAFAFGB
1/4"-28
Fully Threaded
5/8"
UNF
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.45
JBCAFAFGD
1/4"-28
Fully Threaded
3/4"
UNF
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.02
JBCAFAFGE
1/4"-28
Fully Threaded
7/8"
UNF
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 4.59
JBCAFAFGF
1/4"-28
Fully Threaded
1"
UNF
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.46
JBCAFAGGH
1/4"-28
Fully Threaded
1 1/4"
UNF
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.67
JBCAFAGGJ
1/4"-28
Partially Threaded
1 1/2"
UNF
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.10
JBCAFAGHB
1/4"-28
Partially Threaded
1 3/4"
UNF
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.40
JBCAFAGHD
1/4"-28
Partially Threaded
2"
UNF
3/8"
3/16"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.72
JBCAFAFHI
5/16"-18
Fully Threaded
1/2"
UNC
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.53
JBCAFAFHJ
5/16"-18
Fully Threaded
5/8"
UNC
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.48
JBCAFAFIB
5/16"-18
Fully Threaded
3/4"
UNC
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 6.74
JBCAFAFIC
5/16"-18
Fully Threaded
7/8"
UNC
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.01
JBCAFAFID
5/16"-18
Fully Threaded
1"
UNC
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 7.16
JBCAFAFIF
5/16"-18
Fully Threaded
1 1/4"
UNC
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.08
JBCAFAFIH
5/16"-18
Fully Threaded
1 1/2"
UNC
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.25
JBCAFAFIE
5/16"-18
Partially Threaded
1 3/4"
UNC
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.44
JBCAFAFJB
5/16"-18
Partially Threaded
2"
UNC
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 3.50
JBCAFAFJD
5/16"-18
Partially Threaded
2 1/2"
UNC
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 4.40
JBCAFAFJF
5/16"-18
Partially Threaded
3"
UNC
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 4.78
JBCAFAFJG
5/16"-24
Fully Threaded
1/2"
UNF
15/32"
1/4"
170,000 psi
Black-Oxide Alloy Steel
ASME B18.3, ASTM A574
$ 5.67
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