Products
Mar-Bro produces standards, specials, MS and NAS fasteners with diameters from #00 – 3/4″ (M1.0 – M19) and lengths from .050 – 10″ (1.5mm – 254mm).
Click on a head style for detailed information on dimensional, mechanical, and material specifications. If you cannot find what you are looking for or have questions regarding special orders, please contact us. We look forward to hearing from you.
Button Head Cap Screw
ASME B18.3
ASME B18.3.4M
ISO 7380
ASTM A193/A193M
ASTM A320/A320M
ASTM F738M
ASTM F835
ASTM F835M
ASTM F879
ASTM F879M
FF-S-86
ISO 898
ISO 898-1
JIS B1054
- Alloy Steel
4037 UNS G40370
4140 UNS G41400
- Austenitic Alloys
302HQ UNS S30430
304 UNS S30400
304L UNS S30403
310 UNS S31000
316 UNS S31600
316L UNS S31603
- Carbon Steel
1010 UNS G10100
1018 UNS G10180
1022 UNS G10220
1038 UNS G 10380
- Martensitic Alloys410 UNS S 41000
- Nickel Alloys
M400 (MONEL® 400) UNS N04400
K500 (MONEL® 500) UNS N05500
600 (INCONEL® 600) UNS N06600
718 (INCONEL® 718) UNS N07718
- Non-Ferrous Steel
SILICON BRONZE
• CDA 651 UNS C65100
BRASS
• CDA 260 UNS C26000
• CDA 270 UNS C27000
- Precipitation Hardenable AlloysA286 UNS S66286
- Wrought Aluminum Alloys
ALUMINUM
• 2024 UNS A92024
- Industry Specifications
ASTM A193/A193M
ASTM A320/A320M
ASTM A354
ASTM A574
ASTM A574M
ASTM F738M
ASTM F837
ASTM F879
ASTM F879M
FF-S-86
ISO 898
ISO898-1
JIS B 1054
Flat Head Cap Screw
ASME B18.3
ASME B18.3.4M
ISO 10642
ISO 14581
MS 24667
MS 24671
MS 24672
ASTM A193/A193M
ASTM A320/A320M
ASTM F738M
ASTM F835
ASTM F835M
ASTM F879
ASTM F879M
FF-S-86
ISO 898
ISO 898-1
JIS B1054
- Alloy Steel
4037 UNS G40370
4140 UNS G41400
- Austenitic Alloys
302HQ UNS S30430
304 UNS S30400
304L UNS S30403
310 UNS S31000
316 UNS S31600
316L UNS S31603
- Carbon Steel
1010 UNS G10100
1018 UNS G10180
1022 UNS G10220
1038 UNS G 10380
- Martensitic Alloys410 UNS S 41000
- Nickel Alloys
M400 (MONEL® 400) UNS N04400
K500 (MONEL® 500) UNS N05500
600 (INCONEL® 600) UNS N06600
718 (INCONEL® 718) UNS N07718
- Non-Ferrous Steel
SILICON BRONZE
• CDA 651 UNS C65100
BRASS
• CDA 260 UNS C26000
• CDA 270 UNS C27000
- Precipitation Hardenable AlloysA286 UNS S66286
- Wrought Aluminum Alloys
ALUMINUM
• 2024 UNS A92024
- Industry Specifications
ASTM A193/A193M
ASTM A320/A320M
ASTM A354
ASTM A574
ASTM A574M
ASTM F738M
ASTM F837
ASTM F879
ASTM F879M
FF-S-86
ISO 898
ISO898-1
JIS B 1054
Hex Head Bolt
ASME B18.2.1
ASTM A193/A193M
ASTM A307
ASTM A320/A320M
ASTM A354
ASTM A449
ASTM F468
ASTM F593
SAE J429
ASTM F738M
FF-S-86
- Alloy Steel
4037 UNS G40370
4140 UNS G41400
- Austenitic Alloys
302HQ UNS S30430
304 UNS S30400
304L UNS S30403
310 UNS S31000
316 UNS S31600
316L UNS S31603
- Carbon Steel
1010 UNS G10100
1018 UNS G10180
1022 UNS G10220
1038 UNS G 10380
- Martensitic Alloys410 UNS S 41000
- Nickel Alloys
M400 (MONEL® 400) UNS N04400
K500 (MONEL® 500) UNS N05500
600 (INCONEL® 600) UNS N06600
718 (INCONEL® 718) UNS N07718
- Non-Ferrous Steel
SILICON BRONZE
• CDA 651 UNS C65100
BRASS
• CDA 260 UNS C26000
• CDA 270 UNS C27000
- Precipitation Hardenable AlloysA286 UNS S66286
- Wrought Aluminum Alloys
ALUMINUM
• 2024 UNS A92024
- Industry Specifications
ASTM A193/A193M
ASTM A320/A320M
ASTM A354
ASTM A574
ASTM A574M
ASTM F738M
ASTM F837
ASTM F879
ASTM F879M
FF-S-86
ISO 898
ISO898-1
JIS B 1054
Low Head Cap Screw
ASME B18.3
ASME B18.3.4M
DIN 7984
ASTM A193/A193M
ASTM A320/A320M
ASTM A574
ASTM A574M
ASTM F837
ISO 898
ISO 898-1
ISO 3506
ISO 3506-1
JIS B1054
- Alloy Steel
4037 UNS G40370
4140 UNS G41400
- Austenitic Alloys
302HQ UNS S30430
304 UNS S30400
304L UNS S30403
310 UNS S31000
316 UNS S31600
316L UNS S31603
- Carbon Steel
1010 UNS G10100
1018 UNS G10180
1022 UNS G10220
1038 UNS G 10380
- Martensitic Alloys410 UNS S 41000
- Nickel Alloys
M400 (MONEL® 400) UNS N04400
K500 (MONEL® 500) UNS N05500
600 (INCONEL® 600) UNS N06600
718 (INCONEL® 718) UNS N07718
- Non-Ferrous Steel
SILICON BRONZE
• CDA 651 UNS C65100
BRASS
• CDA 260 UNS C26000
• CDA 270 UNS C27000
- Precipitation Hardenable AlloysA286 UNS S66286
- Wrought Aluminum Alloys
ALUMINUM
• 2024 UNS A92024
- Industry Specifications
ASTM A193/A193M
ASTM A320/A320M
ASTM A354
ASTM A574
ASTM A574M
ASTM F738M
ASTM F837
ASTM F879
ASTM F879M
FF-S-86
ISO 898
ISO898-1
JIS B 1054
Socket Head Cap Screw
ASME B18.3
ASME B18.3.1M
DIN 912
DIN 6912
ISO 14579
ISO 4762
BS 2470
MS 16995
MS 16996
NAS 1351
NAS 1352
NAS 16995
NAS 16996
ASTM A193/A193M
ASTM A320/A320M
ASTM A574
ASTM A574M
ASTM F738M
ASTM F837
FF-S-86
ISO 898
ISO 898-1
ISO 3506
ISO 3506-1
ISO 8839
DIN 267
JIS B1054
- Alloy Steel
4037 UNS G40370
4140 UNS G41400
- Austenitic Alloys
302HQ UNS S30430
304 UNS S30400
304L UNS S30403
310 UNS S31000
316 UNS S31600
316L UNS S31603
- Carbon Steel
1010 UNS G10100
1018 UNS G10180
1022 UNS G10220
1038 UNS G 10380
- Martensitic Alloys410 UNS S 41000
- Nickel Alloys
M400 (MONEL® 400) UNS N04400
K500 (MONEL® 500) UNS N05500
600 (INCONEL® 600) UNS N06600
718 (INCONEL® 718) UNS N07718
- Non-Ferrous Steel
SILICON BRONZE
• CDA 651 UNS C65100
BRASS
• CDA 260 UNS C26000
• CDA 270 UNS C27000
- Precipitation Hardenable AlloysA286 UNS S66286
- Wrought Aluminum Alloys
ALUMINUM
• 2024 UNS A92024
- Industry Specifications
ASTM A193/A193M
ASTM A320/A320M
ASTM A354
ASTM A574
ASTM A574M
ASTM F738M
ASTM F837
ASTM F879
ASTM F879M
FF-S-86
ISO 898
ISO898-1
JIS B 1054
Socket Head Shldr Screw
ASME B18.3
ASME B18.3.3M
ISO 7379
ASME B18.3
ASME B18.3.3M
ISO 898
ISO 898-1
JIS B1054
- Alloy Steel
4037 UNS G40370
4140 UNS G41400
- Austenitic Alloys
302HQ UNS S30430
304 UNS S30400
304L UNS S30403
310 UNS S31000
316 UNS S31600
316L UNS S31603
- Carbon Steel
1010 UNS G10100
1018 UNS G10180
1022 UNS G10220
1038 UNS G 10380
- Martensitic Alloys410 UNS S 41000
- Nickel Alloys
M400 (MONEL® 400) UNS N04400
K500 (MONEL® 500) UNS N05500
600 (INCONEL® 600) UNS N06600
718 (INCONEL® 718) UNS N07718
- Non-Ferrous Steel
SILICON BRONZE
• CDA 651 UNS C65100
BRASS
• CDA 260 UNS C26000
• CDA 270 UNS C27000
- Precipitation Hardenable AlloysA286 UNS S66286
- Wrought Aluminum Alloys
ALUMINUM
• 2024 UNS A92024
- Industry Specifications
ASTM A193/A193M
ASTM A320/A320M
ASTM A354
ASTM A574
ASTM A574M
ASTM F738M
ASTM F837
ASTM F879
ASTM F879M
FF-S-86
ISO 898
ISO898-1
JIS B 1054
12 Point Flange Screw
IFI-115
ASTM A193/A193M
ASTM A320/A320M
ASTM A354
ASTM F468
ASTM F593
ASTM F738M
SAE J429
FF-S-86
ISO 898
ISO 898-1
JIS B1054
- Alloy Steel
4037 UNS G40370
4140 UNS G41400
- Austenitic Alloys
302HQ UNS S30430
304 UNS S30400
304L UNS S30403
310 UNS S31000
316 UNS S31600
316L UNS S31603
- Carbon Steel
1010 UNS G10100
1018 UNS G10180
1022 UNS G10220
1038 UNS G 10380
- Martensitic Alloys410 UNS S 41000
- Nickel Alloys
M400 (MONEL® 400) UNS N04400
K500 (MONEL® 500) UNS N05500
600 (INCONEL® 600) UNS N06600
718 (INCONEL® 718) UNS N07718
- Non-Ferrous Steel
SILICON BRONZE
• CDA 651 UNS C65100
BRASS
• CDA 260 UNS C26000
• CDA 270 UNS C27000
- Precipitation Hardenable AlloysA286 UNS S66286
- Wrought Aluminum Alloys
ALUMINUM
• 2024 UNS A92024
- Industry Specifications
ASTM A193/A193M
ASTM A320/A320M
ASTM A354
ASTM A574
ASTM A574M
ASTM F738M
ASTM F837
ASTM F879
ASTM F879M
FF-S-86
ISO 898
ISO898-1
JIS B 1054
Specials
MADE TO PRINT
MADE TO PRINT
- Alloy Steel
4037 UNS G40370
4140 UNS G41400
- Austenitic Alloys
302HQ UNS S30430
304 UNS S30400
304L UNS S30403
310 UNS S31000
316 UNS S31600
316L UNS S31603
- Carbon Steel
1010 UNS G10100
1018 UNS G10180
1022 UNS G10220
1038 UNS G 10380
- Martensitic Alloys410 UNS S 41000
- Nickel Alloys
M400 (MONEL® 400) UNS N04400
K500 (MONEL® 500) UNS N05500
600 (INCONEL® 600) UNS N06600
718 (INCONEL® 718) UNS N07718
- Non-Ferrous Steel
SILICON BRONZE
• CDA 651 UNS C65100
BRASS
• CDA 260 UNS C26000
• CDA 270 UNS C27000
- Precipitation Hardenable AlloysA286 UNS S66286
- Wrought Aluminum Alloys
ALUMINUM
• 2024 UNS A92024
- Industry Specifications
ASTM A193/A193M
ASTM A320/A320M
ASTM A354
ASTM A574
ASTM A574M
ASTM F738M
ASTM F837
ASTM F879
ASTM F879M
FF-S-86
ISO 898
ISO898-1
JIS B 1054