Bolt Part Number Generator
Generate part numbers for hex bolts in metric and inch series
Generate Part Number
Decode Part Number
Generate Bolt Part Number
Metric Series
Inch Series
Fastener Type
1 - Screw
2 - Bolt
Grade/Class
2 - 8.8
5 - 10.9
6 - 12.9
Diameter
03 - M3
04 - M4
05 - M5
06 - M6
08 - M8
10 - M10
12 - M12
14 - M14
16 - M16
18 - M18
20 - M20
22 - M22
24 - M24
27 - M27
30 - M30
36 - M36
Pitch Code
1 - M3-M6 (1.0 mm)
1 - M8 (1.0 mm)
2 - M8 (1.25 mm)
1 - M10 (1.0 mm)
2 - M10 (1.25 mm)
3 - M10 (1.5 mm)
1 - M12 (1.0 mm)
2 - M12 (1.25 mm)
3 - M12 (1.5 mm)
4 - M12 (1.75 mm)
3 - M14 (1.5 mm)
5 - M14 (2.0 mm)
3 - M16 (1.5 mm)
5 - M16 (2.0 mm)
3 - M18/M20/M22 (1.5 mm)
5 - M18/M20/M22 (2.0 mm)
7 - M18/M20/M22 (2.5 mm)
3 - M24 (1.5 mm)
5 - M24 (2.0 mm)
9 - M24 (3.0 mm)
9 - M27 (3.0 mm)
7 - M30 (3.5 mm)
9 - M36 (4.0 mm)
Length (mm)
Fastener Type
1 - Screw
2 - Bolt
Grade/Class
2 - Grade 2 (BSW/BSF)
8 - Grade 8 (UNC/UNF)
Diameter (inches)
1/4"
5/16"
3/8"
7/16"
1/2"
5/8"
3/4"
7/8"
1"
Diameter code = diameter × 32
Thread Type
1 - BSW
2 - BSF
4 - UNC
5 - UNF
Length (inches)
0/0
1/8
1/4
3/8
1/2
5/8
3/4
7/8
Length code = whole number + (fraction × 16)
Finish Code (optional)
No finish code
0200 - Zinc Phosphate
0300 - Zinc White/Blue
0400 - Zinc Yellow
0900 - Zinc Green
2500 - Trivalent
4400 - Geomet (Silver)
4500 - Dacromet (Silver)
5901 - Zinc Grey/Black
9700 - Hot Dip Galvanizing
Generate Part Number
Generated Bolt Part Number
222124104
Complete Part Number:
222124104
With Finish Code:
222124104
Calculations:
Diameter: 3/8" × 32 = 12, Length: 1 + (1/4 × 16) = 1 + 04 = 104
Decode Bolt Part Number
Enter Part Number
Enter 9-digit part number (optional finish code with -)
Decode Part Number
Decoded Information
222124104
1st Digit - Fastener Type:
Bolt (2)
2nd Digit - Series:
Inch (2)
3rd Digit - Grade/Class:
Grade 2 (2)
4th-5th Digits - Diameter:
3/8" (12)
6th Digit - Thread Type:
UNC (4)
7th-9th Digits - Length:
1 1/4" (104)
Finish Code (if any):
Not specified