Machine Bolt
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JF Engineering has been manufacturing Machine Bolt since 2004 & shipped to more than 60 Countries Like Argentina, Germany, Mexico ,Vietnam, Indonesia, USA , Saudi Arabia, UAE, Egypt , Turkey, Venezuela, Italy, Singapore, Malaysia, Australia, New Zealand, Canada & many more.
Machine bolts are used to fasten wood to wood, wood to metal and metal to metal. Similar to a hex cap screw, a machine bolt will differ in these four ways: its point will not be chamfered or rounded; it will be available in larger sizes (diameters); it will not have an underhead washer bearing surface; and it will be manufactured to less exacting standards. Depending on head style, machine bolts are also known as: hex bolts, square bolts.They are used with nuts and internally threaded (tapped) holes.
We produce premium quality Machine Bolts from Nickel Alloys ,Stainless Steels,Super Alloys,Duplex steels & Super Duplex,Copper & Copper Alloys,Aluminum Alloys,Bronze alloys ,Titanium grades with ASTM/ASME/DIN Standards & Specifications.We produce different types of hot forged cold formed bolts in almost all shapes & sizes.We also provide passivation,quality coating further processing as per client's requirement
Typically, machine bolt sizes range from 1/4" to 1 1/4" for square heads and 3/8" to 1 3/4" in diameter for hex heads, and lengths span from about 3/4" to 18" for square and 6 1/2" to 24" for hex heads. Measure length from under the head to the threaded end of the bolt.
Orders at JF Engg are guaranteed fast delivery of the Machine Bolt in the country. The main reason being we have an excellent warehousing and storage facilities for both finished and semi finished goods.They are made ready as per the urgent requirements of the customers. The Machine Bolt are manufactured to sustain very high pressure and product warranty.In 2015 we have stocked more than 188 tons of Machine Bolt in all sizes, to cater to immediate delivery and urgent needs of the clients. For small requirements we can dispatch the Machine Bolt immediately against the purchase order.
For quick Quote on Machine Bolts, please contact us
Machine Bolts Dimensions For Square Heads
Nominal Size |
Head Width |
Head Height |
Minimum Threaded Length |
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|---|---|---|---|---|---|---|
Across Flats |
Across Corners |
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Fraction |
Decimal |
Basic |
Avg |
Basic |
≤6" |
>6" |
1/4 |
0.2500 |
3/8 |
33/64 |
11/64 |
3/4 |
1 |
5/16 |
0.3125 |
1/2 |
11/16 |
13/64 |
7/8 |
1 1/8 |
3/8 |
0.3750 |
9/16 |
49/64 |
1/4 |
1 |
1 1/4 |
7/16 |
0.4375 |
5/8 |
55/64 |
19/64 |
1 1/8 |
1 3/8 |
1/2 |
0.5000 |
3/4 |
1 1/32 |
21/64 |
1 1/4 |
1 1/2 |
5/8 |
0.6250 |
15/16 |
1 9/32 |
27/64 |
1 1/2 |
1 3/4 |
3/4 |
0.7500 |
1 1/8 |
1 35/64 |
1/2 |
1 3/4 |
2 |
7/8 |
0.8750 |
1 5/16 |
1 51/64 |
19/32 |
2 |
2 1/4 |
1 |
1.0000 |
1 1/2 |
2 1/16 |
21/32 |
2 1/4 |
2 1/2 |
1 1/8 |
1.1250 |
1 11/16 |
2 5/16 |
3/4 |
2 1/2 |
2 3/4 |
1 1/4 |
1.2500 |
1 7/8 |
2 37/64 |
27/32 |
2 3/4 |
3 |
Table 1. Square Head Machine Bolt Dimensions. Nominal size in fractional and decimal inches, head width across flats and corners, head height and minimum threaded length, in inches. (Note: Average size is calculated and rounded to nearest 64th.)
Machine Bolt Dimensions for Hex Heads
Nominal Size |
Head Width |
Head Height |
Minimum Threaded Length |
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|---|---|---|---|---|---|---|
Across Flats |
Across Corners |
|||||
Fraction |
Decimal |
Basic |
Avg |
Basic |
≤6" |
>6" |
3/8 |
0.3750 |
9/16 |
41/64 |
1/4 |
1 |
1 1/4 |
7/16 |
0.4375 |
5/8 |
45/64 |
19/64 |
1 1/8 |
1 3/8 |
1/2 |
0.5000 |
3/4 |
27/32 |
11/32 |
1 1/4 |
1 1/2 |
5/8 |
0.6250 |
15/16 |
1 1/16 |
27/64 |
1 1/2 |
1 3/4 |
3/4 |
0.7500 |
1 1/8 |
1 17/64 |
1/2 |
1 3/4 |
2 |
7/8 |
0.8750 |
1 5/16 |
1 31/64 |
37/64 |
2 |
2 1/4 |
1 |
1.0000 |
1 1/2 |
1 11/16 |
43/64 |
2 1/4 |
2 1/2 |
1 1/8 |
1.1250 |
1 11/16 |
1 29/32 |
3/4 |
2 1/2 |
2 3/4 |
1 1/4 |
1.2500 |
1 7/8 |
2 7/64 |
27/32 |
2 3/4 |
3 |
1 3/8 |
1.3750 |
2 1/16 |
2 21/64 |
29/32 |
3 |
3 1/4 |
1 1/2 |
1.5000 |
2 1/4 |
2 17/32 |
1 |
3 1/4 |
3 1/2 |
1 3/4 |
1.7500 |
2 5/8 |
2 31/32 |
1 5/32 |
3 3/4 |
4 |
Table 2. Hex Head Machine Bolt Dimensions. Nominal size in fractional and decimal inches, head width across flats and corners, head height and minimum threaded length, in inches. (Note: Average size is calculated and rounded to nearest 64th.)
Ready Stock
Surface Coatings
General Queries While Buying Machine Bolt
- High rejection rate
- No control on quality and testing
- Non availability
- Late deliveries
- Poor packaging/ Unprofessional Packing
- Poor after sales service
- Supply of wrong grades
- Material inconsistent with ASTM Standards
- Very hard material for use
- Poor surface finish
- No Mill test report
- Dubious Practices
- Lack of knowledge
- Product fails under high pressure
- High pricing of the goods due to supplier commission
Why Choose JF Engg. While Buying Machine Bolt?
- High pressure sustainability
- Impeccable surface finish
- Product replacement warranty
- After sales support and service
- World class buying experience
- Very quick delivery
- Mill test report/ Digital Mill test report in accordance with EN10204 NACE 3.1, NACE 3.2
- 3rd Party inspection
- Government and Private Laboratory Testing
- Test certificate from ISO 17025 Standards Laboratory
- Same day shipping of the goods
- Highest stock in the country
- Stringent Quality Testing and Control
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For More Information About Machine Bolt please call +91 22 2385 6385 / 2385 638 or send an email to info@jfengg.com
