AUTOMOTIVE Domestic Auto Specialty 4
ENGINE STUDS — INCH
C C C
‘A’ Diameter
‘A’ Pitch
‘A’ Length
‘B’ Diameter
‘B’ Pitch
‘B’ Length ‘C’
Part No.
252.14.1
1/4” 1/4”
UNF UNF
7/16 3/4”
UNC 7/16” UNC 1/2” UNC 7/16” UNC 5/8” UNC 5/8” UNC 9/16” UNC 1/2” UNC 9/16” UNC 5/8” UNC 3/4” UNC 11/16” UNC 5/8” UNC 7/16” UNC 5/8” UNC 7/8” UNC 7/8” UNC 3/4” UNC 9/16” UNC 7/8” UNC 3/4” UNC 3/4” UNC 15/16” UNC 1”
1/4” 1/4”
1”
252.14.112 252.516.114 252.516.112 252.516.134 252.516.2 252.38.112 252.38.134 252.38.1340 252.38.2 252.38.02 252.38.212 252.38.314 252.716.134
1-1/2” 1-1/4” 1-1/2” 1-3/4”
UNF 11/16”
5/16” 5/16” 5/16” 5/16”
5/16” 5/16” 5/16” 5/16”
A A A
B B B
UNF UNF UNF UNF UNF
3/4” 7/8”
1”
2”
3/8” 3/8” 3/8” 3/8” 3/8” 3/8” 3/8”
3/4” 7/8”
3/8” 3/8” 3/8” 3/8” 3/8” 3/8” 3/8”
1-1/2” 1-3/4” 1-3/4”
Material: Plating: Applications:
Grade 5 Steel Unplated, except where noted Various automotive applications
UNC 7/8”
UNC
1”
2” 2”
UNF 1-1/16” UNC 1-3/8” UNC 1-5/8”
2-1/2” 3-1/4” 1-3/4”
UNF UNF UNF
7/16” 7/16” 7/16” 7/16”
3/4” 7/8”
7/16” 7/16” 7/16” 7/16”
252.716.2
2”
252.716.212 252.716.2120
1”
2-1/2” 2-1/2” 1-1/2”
UNC 1-1/4”
252.12.112
UNF UNF UNF UNF
1/2” 1/2” 1/2” 1/2”
5/8” 7/8”
1/2” 1/2” 1/2” 1/2”
252.12.2
2”
252.12.214 252.12.212 252.916.212
1”
2-1/4” 2-1/2” 2-1/2”
1-1/8”
9/16”
UNF 1-3/8”
9/16”
252.58.3
UNF
5/8”
1-1/4”
5/8”
3”
ENGINE STUDS — METRIC
8
‘A’ Diameter
‘A’ Length
‘B’ Length
‘C’ Diameter
‘C’ Length
‘D’ Overall
Part No.
250.6.15 251.6.23 250.6.25 250.6.20 250.8.20 250.8.25 251.8.30 250.8.35 250.10.25 250.10.30 251.10.25 251.10.26
M6x1.0
9.5mm 5.5mm M6x1.0
7.5mm 22.5mm
B C A Dimensions Given: (A)mm x (B)mm x (C)mm
M6x1.0
FT
23mm
M6x1.0
18mm 7mm
M6x1.0
7.5mm 32.5mm
M6x1.0
14.5mm 5.5mm M6x1.0
7.5mm 27.5mm
M8x1.25
15.5mm 4.5mm M8x1.25
10mm 30mm
Material: Plating: Specs: Applications:
Class 8.8 Steel Unplated, except where noted DIN 939 DIN9390 (Step Studs) Gearbox and engine assembly
M8x1.25
20.5mm 4.5mm M8x1.25
10mm 35mm
M8x1.25
25mm 6mm M8x1.25
15mm 46mm
M8x1.25
22mm 13mm M8x1.25
10mm 45mm
M10x1.5
19.7mm 5.3mm M10x1.5
12mm 37mm
M10x1.5
24.7mm 5.3mm M10x1.5
12mm 42mm
M10x1.25
21mm 8mm M10x1.25
13mm 42mm
M10x1.25
27mm 12mm M10x1.25
15mm 48mm
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