Machine Bolts
Machine bolts are used to fasten two pieces of wood or metals in manufacturing & construction applications. Raptor Supplies offers machine bolts from brands like Proto,
3/8"-16 Coarse Black Oxide Grade A307 Steel Machine Bolts
A
B
C
D| Style | Model | Thread Style | Thread Direction | Head Height | Tensile Strength | Head Dia. | Screw Type | Neck Type | Neck Width | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U08350.037.0200 | €121.67 | 50 | |||||||||
| B | U08350.037.0250 | €55.44 | 25 | |||||||||
| B | U08350.037.0300 | €194.38 | 25 | |||||||||
| C | U08350.037.0125 | €119.38 | 50 | |||||||||
| D | U08350.037.0150 | €141.41 | 50 |
M8 x 1.25 Coarse Plain Grade 316H5 Stainless Steel Hex Machine Bolts
Machine bolts are used to fasten two pieces of wood or metals in manufacturing & construction applications. They can be paired up with a threaded nut to be inserted into pre-drilled holes and provide tightening torque for joining materials together.
They have widely spaced threads to tighten easily with few turns. Deep & thick threads for decreasing stripping or jamming when nicked / dirty / rusty. These bolts are made of stainless steel for strength and plain finish to resist oxidation on exposed surfaces.
Machine bolts are used to fasten two pieces of wood or metals in manufacturing & construction applications. They can be paired up with a threaded nut to be inserted into pre-drilled holes and provide tightening torque for joining materials together.
They have widely spaced threads to tighten easily with few turns. Deep & thick threads for decreasing stripping or jamming when nicked / dirty / rusty. These bolts are made of stainless steel for strength and plain finish to resist oxidation on exposed surfaces.
A| Style | Model | Thread Length | Overall Length | Thread Style | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | ZS616M8X16 | €16.42 | |||||||||
| A | ZS616M8X20 | €16.50 | |||||||||
| A | ZS616M8X25 | €17.48 | |||||||||
| A | ZS616M8X30 | €19.36 | |||||||||
| A | ZS616M8X35 | €25.31 | |||||||||
| A | ZS616M8X40 | €26.86 | |||||||||
| A | ZS616M8X50 | €37.12 |
A| Style | Model | Thread Style | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Flange Dia. | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | SQHDG5FTZY38161 | €179.30 | 50 | ||||||||
| A | SQHDG5FTZY3816112 | €182.72 | 50 |
1/2"-13 Coarse Black Oxide Grade A307B Steel Hex Machine Bolts
A
B| Style | Model | Grip Size | Thread Style | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Type | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U04000.050.0275 | €49.70 | 25 | |||||||||
| A | U04000.050.0250 | €40.56 | 25 | |||||||||
| A | U04000.050.0300 | €64.25 | 25 | |||||||||
| A | U04000.050.0225 | €38.98 | 25 | |||||||||
| B | U04000.050.0175 | €37.02 | 25 | |||||||||
| B | U04000.050.0150 | €27.22 | 25 | |||||||||
| A | U04000.050.0200 | €34.02 | 25 |
5/8"-11 Coarse Black Oxide Grade A307B Steel Hex Machine Bolts
ABC
D| Style | Model | Thread Style | Grip Size | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Type | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U04000.062.0150 | €18.32 | 10 | |||||||||
| B | B04000.062.0175 | €184.94 | 100 | |||||||||
| B | U04000.062.0175 | €20.06 | 10 | |||||||||
| B | U04000.062.0200 | €26.90 | 10 | |||||||||
| C | U04000.062.0225 | €26.52 | 10 | |||||||||
| C | U04000.062.0250 | €27.23 | 10 | |||||||||
| C | U04000.062.0275 | €29.11 | 10 | |||||||||
| C | U04000.062.0300 | €37.09 | 10 | |||||||||
| D | U04000.062.0325 | €29.08 | 10 | |||||||||
| D | U04000.062.0350 | €33.49 | 10 | |||||||||
| D | U04000.062.0375 | €36.89 | 10 | |||||||||
| D | U04000.062.0400 | €47.82 | 10 | |||||||||
| D | U04000.062.0450 | €66.80 | 10 | |||||||||
| D | U04000.062.0500 | €44.49 | 10 |
3/4"-10 Coarse Black Oxide Grade A307B Steel Hex Machine Bolts
ABC
DE| Style | Model | Thread Style | Thread Length | Grip Size | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U04000.075.0150 | €32.88 | 10 | |||||||||
| A | U04000.075.0175 | €32.70 | 10 | |||||||||
| B | U04000.075.0200 | €33.04 | 10 | |||||||||
| B | U04000.075.0225 | €37.99 | 10 | |||||||||
| B | U04000.075.0250 | €39.89 | 10 | |||||||||
| C | U04000.075.0275 | €55.68 | 10 | |||||||||
| C | U04000.075.0300 | €43.93 | 10 | |||||||||
| D | U04000.075.0325 | €49.13 | 10 | |||||||||
| D | U04000.075.0350 | €48.40 | 10 | |||||||||
| D | U04000.075.0375 | €52.63 | 10 | |||||||||
| E | U04000.075.0400 | €55.64 | 10 | |||||||||
| E | U04000.075.0450 | €60.95 | 10 | |||||||||
| E | U04000.075.0500 | €72.80 | 10 |
1"-8 Coarse Black Oxide Grade A307B Steel Hex Machine Bolts
ABCD| Style | Model | Thread Style | Grip Size | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Type | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U04000.100.0225 | €54.28 | 5 | |||||||||
| B | U04000.100.0250 | €40.01 | 5 | |||||||||
| B | U04000.100.0300 | €44.82 | 5 | |||||||||
| C | U04000.100.0325 | €53.07 | 5 | |||||||||
| C | U04000.100.0350 | €58.67 | 5 | |||||||||
| C | U04000.100.0400 | €78.20 | 5 | |||||||||
| C | U04000.100.0450 | €58.70 | 5 | |||||||||
| D | U04000.100.0500 | €71.11 | 5 |
1 1/4"-7 Coarse Black Oxide Grade A307B Steel Hex Machine Bolts
AB| Style | Model | Thread Style | Grip Size | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Type | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U04000.125.0600 | €124.20 | 5 | |||||||||
| B | U04000.125.0400 | €96.82 | 5 | |||||||||
| B | U04000.125.0450 | €103.51 | 5 | |||||||||
| B | U04000.125.0500 | €112.15 | 5 |
3/4"-10 Coarse Hot Dipped Galvanized Grade A307B Steel Hex Machine Bolts
A
B
C
D| Style | Model | Thread Style | Grip Size | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Type | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U04200.075.0175 | €75.00 | 10 | |||||||||
| B | U04200.075.0200 | €68.41 | 10 | |||||||||
| B | U04200.075.0225 | €50.49 | 10 | |||||||||
| B | U04200.075.0250 | €68.44 | 10 | |||||||||
| B | U04200.075.0300 | €84.31 | 10 | |||||||||
| C | U04200.075.0325 | €65.25 | 10 | |||||||||
| C | U04200.075.0350 | €87.16 | 10 | |||||||||
| D | U04200.075.0400 | €142.63 | 10 | |||||||||
| D | U04200.075.0450 | €364.11 | 10 | |||||||||
| D | U04200.075.0500 | €67.02 | 10 | |||||||||
| D | B04200.075.0500 | €166.09 | 30 |
7/8"-9 Coarse Hot Dipped Galvanized Grade A307B Steel Hex Machine Bolts
AB| Style | Model | Grip Size | Thread Style | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Type | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U04200.087.0350 | €70.42 | 5 | |||||||||
| B | U04200.087.0450 | €107.42 | 5 | |||||||||
| A | U04200.087.0400 | €61.41 | 5 | |||||||||
| B | U04200.087.0500 | €92.44 | 5 |
| Style | Model | Grip Size | Thread Style | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Type | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U04200.100.0350 | €68.87 | 5 | |||||||||
| A | U04200.100.0400 | €75.01 | 5 | |||||||||
| A | U04200.100.0450 | €103.72 | 5 |
1/4"-20 Coarse Black Oxide Grade A307 Steel Machine Bolts
ABC| Style | Model | Thread Style | Thread Direction | Head Height | Tensile Strength | Head Dia. | Screw Type | Neck Type | Neck Width | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U08350.025.0100 | €61.07 | 50 | |||||||||
| B | U08350.025.0125 | €65.75 | 50 | |||||||||
| B | U08350.025.0150 | €55.34 | 50 | |||||||||
| C | U08350.025.0200 | €66.16 | 50 |
5/16"-18 Coarse Black Oxide Grade A307 Steel Machine Bolts
A
BCD
E| Style | Model | Thread Style | Thread Direction | Head Height | Tensile Strength | Head Dia. | Screw Type | Neck Type | Neck Width | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U08350.031.0075 | €147.92 | 50 | |||||||||
| B | U08350.031.0100 | €87.31 | 50 | |||||||||
| C | U08350.031.0125 | €70.70 | 50 | |||||||||
| D | U08350.031.0150 | €70.70 | 50 | |||||||||
| E | U08350.031.0200 | €160.75 | 50 |
M20 x 2.5 Coarse Black Oxide Steel Square Machine Bolts
M20 x 2.5 coarse square head machine bolts are used in heavy machinery, construction and industrial applications for securing heavy components together, such as steel beams, machinery parts and structural elements. These bolts can withstand high loads and vibrations due to their square shape, which provides a better grip and prevents loosening over time.
M20 x 2.5 coarse square head machine bolts are used in heavy machinery, construction and industrial applications for securing heavy components together, such as steel beams, machinery parts and structural elements. These bolts can withstand high loads and vibrations due to their square shape, which provides a better grip and prevents loosening over time.
A
B
C| Style | Model | Thread Length | Overall Length | Thread Style | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | M01030.200.0050 | €234.17 | 10 | |||||||||
| B | M01030.200.0060 | €250.40 | 10 | |||||||||
| B | M01030.200.0070 | €267.41 | 10 | |||||||||
| B | M01030.200.0080 | €271.07 | 10 | |||||||||
| C | M01030.200.0090 | €301.64 | 10 | |||||||||
| C | M01030.200.0100 | €303.07 | 10 | |||||||||
| C | M01030.200.0120 | €342.25 | 10 |
M12 x 1.75 Coarse Plain Grade 316H5 Stainless Steel Hex Machine Bolts
A| Style | Model | Thread Length | Overall Length | Thread Style | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | ZS616M12X30 | €64.93 | |||||||||
| A | ZS616M12X35 | €72.44 | |||||||||
| A | ZS616M12X40 | €82.93 | |||||||||
| A | ZS616M12X50 | €123.44 |
M24 x 3 Coarse Black Oxide Steel Square Machine Bolts
AB| Style | Model | Thread Length | Overall Length | Thread Style | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | M01030.240.0080 | €912.06 | 10 | |||||||||
| A | M01030.240.0070 | €759.73 | 10 | |||||||||
| B | M01030.240.0090 | €439.90 | 5 | |||||||||
| B | M01030.240.0100 | €220.44 | 5 | |||||||||
| B | M01030.240.0120 | €421.43 | 5 |
M6 x 1 Coarse Black Oxide Steel Square Machine Bolts
A
B
C| Style | Model | Thread Length | Overall Length | Thread Style | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | M01030.060.0016 | €90.28 | 100 | |||||||||
| A | M01030.060.0020 | €117.65 | 100 | |||||||||
| B | M01030.060.0030 | €117.87 | 100 | |||||||||
| B | M01030.060.0040 | €135.01 | 100 | |||||||||
| C | M01030.060.0050 | €170.68 | 100 |
| Style | Model | Grip Size | Thread Style | Thread Direction | Head Height | Hardness | Tensile Strength | Head Dia. | Type | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U04200.050.0250 | €219.15 | 25 | |||||||||
| A | U04200.050.0225 | €51.57 | 25 | |||||||||
| A | U04200.050.0175 | €76.75 | 25 | |||||||||
| A | U04200.050.0150 | €53.73 | 25 | |||||||||
| A | U04200.050.0200 | €34.71 | 25 |
1/4"-20 Coarse Black Oxide Grade A307A Steel Flat Machine Bolts
A
B| Style | Model | Head Height | Thread Style | Thread Direction | Hardness | Tensile Strength | Head Dia. | Type | Screw Type | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U08360.025.0075 | €49.66 | 50 | |||||||||
| A | U08360.025.0150 | €62.38 | 50 | |||||||||
| A | U08360.025.0100 | €51.21 | 50 | |||||||||
| A | U08360.025.0125 | €56.93 | 50 | |||||||||
| B | U08360.025.0225 | €70.70 | 50 | |||||||||
| B | U08360.025.0250 | €78.99 | 50 | |||||||||
| B | U08360.025.0300 | €89.90 | 50 | |||||||||
| B | U08360.025.0175 | €83.12 | 50 | |||||||||
| B | U08360.025.0200 | €65.86 | 50 |
5/16"-18 Coarse Black Oxide Grade A307A Steel Flat Machine Bolts
AB| Style | Model | Thread Style | Hardness | Thread Direction | Head Height | Tensile Strength | Head Dia. | Type | Screw Type | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U08360.031.0075 | €47.35 | 25 | |||||||||
| A | U08360.031.0100 | €41.89 | 25 | |||||||||
| A | U08360.031.0125 | €53.15 | 25 | |||||||||
| B | U08360.031.0300 | €66.89 | 25 | |||||||||
| A | U08360.031.0150 | €55.81 | 25 | |||||||||
| A | U08360.031.0175 | €58.37 | 25 | |||||||||
| B | U08360.031.0200 | €47.68 | 25 | |||||||||
| B | U08360.031.0250 | €70.70 | 25 |
3/8"-16 Coarse Black Oxide Grade A307A Steel Flat Machine Bolts
AB| Style | Model | Thread Style | Hardness | Thread Direction | Head Height | Tensile Strength | Head Dia. | Type | Screw Type | Price | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U08360.037.0100 | €25.41 | 10 | |||||||||
| A | U08360.037.0125 | €28.27 | 10 | |||||||||
| A | U08360.037.0150 | €26.53 | 10 | |||||||||
| A | U08360.037.0175 | €30.01 | 10 | |||||||||
| A | U08360.037.0200 | €31.47 | 10 | |||||||||
| B | U08360.037.0300 | €39.73 | 10 |
Machine Bolts
Machine bolts are used to fasten two pieces of wood or metals in manufacturing & construction applications. Raptor Supplies offers machine bolts from brands like Proto, Texas Pneumatic Tools, Thomas & Betts, Fabory, Vulcan Hart and more. They can be paired up with a threaded nut to be inserted into pre-drilled holes and provide tightening torque for joining materials together.
Frequently Asked Questions
What is the difference between machine bolts and machine screws?
Machine bolts are often confused with machine screws. Generally, machine screws are smaller in size compared to machine bolts, but are fully threaded. Machine bolts have a flat tip, not a pointed / tapered tip as seen in screws. Screws are typically used in pre-tapped holes or driven into materials for creating their own threads when tightened. In contrast, machine bolts are often paired with nuts at the end of the bolt for torquing during installation. Nuts are not generally mated with screws.
What are the thread fits or classes in these machine bolts?
Thread fit grades or classes of a fastener indicate the degree of looseness or tightness of mating threads. Generally, the higher the class number, the tighter the fit of the attached components (like nuts). Lower thread fit grades / classes are suitable for applications requiring quick assembly & disassembly. Higher thread classes are ideal for close tolerances, safety & strength.
What do the strength grades / classes mean in machine bolts?
- The grade or class of a machine bolt denotes its strength & compatibility with the respective nut.
- Generally, the higher the grade, the higher the strength of the fastener.
- SAE grades are used for Imperial-sized bolts. Bolts having the same SAE strength grade as a nut should be used together.
- ISO classes are used for Metric-sized bolts. Bolts having the same first digit as a nut are meant to be used together.
- ASTM grades are based on factors like strength, high pressures & high temperatures.
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