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About Hex Head Screws and Bolts
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Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.
Steel Cotter-Pin-Locking Hex Head Screws
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Fully Threaded | Partially Threaded |
Secure rotating parts subjected to vibration, such as the wheels on carts and hand trucks. A cotter pin (not included) slides through the hole in the shank of these screws to keep nuts from loosening. They hold stronger than screws with threadlocker and lockwashers, but they aren’t recommended for high-vibration applications because prolonged stress can shear the pin. The head's six flat sides keep wrenches and sockets from slipping and rounding off the drive.
Length is measured from under the head.
Medium-Strength Fastener—Your go-to screws for fastening most machinery and equipment. They have tensile strengths from 90,000 to 120,000 psi.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
Cadmium-Plated Steel—The plating reduces friction between the screw and your mounting surface to prevent sticking when you tighten or loosen screws. It also creates a barrier against rust.
Head | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | Hole Dia. | For Cotter Pin Dia. | Threading | Thread Spacing | Fastener Strength Grade/Class | Tensile Strength, psi | Mil. Spec. | Pkg. Qty. | Pkg. | |||
Medium-Strength Zinc-Plated Steel | ||||||||||||||
1/2"-13 | ||||||||||||||
| 1" | 3/4" | 5/16" | 0.106" | 3/32" | Fully Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A111 | 00000 | ||
| 1 1/4" | 3/4" | 5/16" | 0.106" | 3/32" | Fully Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A112 | 0000 | ||
| 1 1/2" | 3/4" | 5/16" | 0.106" | 3/32" | Fully Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A113 | 0000 | ||
| 1 3/4" | 3/4" | 5/16" | 0.106" | 3/32" | Fully Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A114 | 0000 | ||
| 2" | 3/4" | 5/16" | 0.106" | 3/32" | Partially Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A115 | 0000 | ||
| 2 1/2" | 3/4" | 5/16" | 0.106" | 3/32" | Partially Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A116 | 0000 | ||
| 3" | 3/4" | 5/16" | 0.106" | 3/32" | Partially Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A117 | 0000 | ||
5/8"-11 | ||||||||||||||
| 1 1/2" | 15/16" | 25/64" | 0.141" | 1/8" | Fully Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A118 | 0000 | ||
| 2" | 15/16" | 25/64" | 0.141" | 1/8" | Fully Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A119 | 0000 | ||
| 2 1/2" | 15/16" | 25/64" | 0.141" | 1/8" | Partially Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A121 | 0000 | ||
| 3" | 15/16" | 25/64" | 0.141" | 1/8" | Partially Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A122 | 0000 | ||
3/4"-10 | ||||||||||||||
| 2" | 1 1/8" | 15/32" | 0.141" | 1/8" | Fully Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A123 | 0000 | ||
| 2 1/2" | 1 1/8" | 15/32" | 0.141" | 1/8" | Fully Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A124 | 00000 | ||
| 3" | 1 1/8" | 15/32" | 0.141" | 1/8" | Partially Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A125 | 00000 | ||
| 4" | 1 1/8" | 15/32" | 0.141" | 1/8" | Partially Threaded | Coarse | SAE Grade 5 | 120,000 | — | 1 | 94871A126 | 00000 | ||
M6 × 1 mm | ||||||||||||||
| 16 mm | 10 mm | 4 mm | 1.9 mm | 1.6 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 5 | 94892A211 | 00000 | ||
| 20 mm | 10 mm | 4 mm | 1.9 mm | 1.6 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 5 | 94892A212 | 00000 | ||
| 25 mm | 10 mm | 4 mm | 1.9 mm | 1.6 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 5 | 94892A213 | 00000 | ||
| 30 mm | 10 mm | 4 mm | 1.9 mm | 1.6 mm | Partially Threaded | Coarse | Class 8.8 | 120,000 | — | 5 | 94892A214 | 00000 | ||
M8 × 1.25 mm | ||||||||||||||
| 20 mm | 13 mm | 5.3 mm | 1.9 mm | 1.6 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 5 | 94892A215 | 00000 | ||
| 25 mm | 13 mm | 5.3 mm | 1.9 mm | 1.6 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 5 | 94892A216 | 00000 | ||
| 30 mm | 13 mm | 5.3 mm | 1.9 mm | 1.6 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 5 | 94892A217 | 00000 | ||
| 35 mm | 13 mm | 5.3 mm | 1.9 mm | 1.6 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 5 | 94892A218 | 00000 | ||
| 40 mm | 13 mm | 5.3 mm | 1.9 mm | 1.6 mm | Partially Threaded | Coarse | Class 8.8 | 120,000 | — | 5 | 94892A219 | 00000 | ||
| 50 mm | 13 mm | 5.3 mm | 1.9 mm | 1.6 mm | Partially Threaded | Coarse | Class 8.8 | 120,000 | — | 5 | 94892A221 | 00000 | ||
| 60 mm | 13 mm | 5.3 mm | 1.9 mm | 1.6 mm | Partially Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A222 | 0000 | ||
M10 × 1.5 mm | ||||||||||||||
| 20 mm | 17 mm | 6.4 mm | 2.7 mm | 2.5 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A223 | 0000 | ||
| 30 mm | 17 mm | 6.4 mm | 2.7 mm | 2.5 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A224 | 0000 | ||
| 35 mm | 17 mm | 6.4 mm | 2.7 mm | 2.5 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A225 | 0000 | ||
| 40 mm | 17 mm | 6.4 mm | 2.7 mm | 2.5 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A226 | 0000 | ||
| 45 mm | 17 mm | 6.4 mm | 2.7 mm | 2.5 mm | Partially Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A227 | 0000 | ||
| 50 mm | 17 mm | 6.4 mm | 2.7 mm | 2.5 mm | Partially Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A228 | 0000 | ||
M12 × 1.75 mm | ||||||||||||||
| 25 mm | 19 mm | 7.5 mm | 2.7 mm | 2.5 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A229 | 0000 | ||
| 35 mm | 19 mm | 7.5 mm | 2.7 mm | 2.5 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A231 | 0000 | ||
| 40 mm | 19 mm | 7.5 mm | 2.7 mm | 2.5 mm | Fully Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A232 | 0000 | ||
| 50 mm | 19 mm | 7.5 mm | 2.7 mm | 2.5 mm | Partially Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A233 | 0000 | ||
| 60 mm | 19 mm | 7.5 mm | 2.7 mm | 2.5 mm | Partially Threaded | Coarse | Class 8.8 | 120,000 | — | 1 | 94892A234 | 0000 | ||
Medium-Strength Cadmium-Plated Steel | ||||||||||||||
1/4"-28 | ||||||||||||||
| 17/32" | 7/16" | 11/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN4-4 | 10 | 94622A211 | 00000 | ||
| 21/32" | 7/16" | 11/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN4-5 | 10 | 94622A212 | 00000 | ||
| 25/32" | 7/16" | 11/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN4-6 | 10 | 94622A213 | 00000 | ||
| 1 1/32" | 7/16" | 11/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN4-10 | 10 | 94622A214 | 00000 | ||
| 1 9/32" | 7/16" | 11/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN4-12 | 10 | 94622A215 | 00000 | ||
| 1 17/32" | 7/16" | 11/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN4-14 | 10 | 94622A216 | 00000 | ||
| 2 1/32" | 7/16" | 11/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN4-20 | 10 | 94622A217 | 00000 | ||
5/16"-24 | ||||||||||||||
| 27/32" | 1/2" | 13/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN5-6 | 5 | 94622A221 | 0000 | ||
| 1 3/32" | 1/2" | 13/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN5-10 | 5 | 94622A222 | 00000 | ||
| 1 11/32" | 1/2" | 13/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN5-12 | 5 | 94622A223 | 00000 | ||
| 1 19/32" | 1/2" | 13/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN5-14 | 5 | 94622A224 | 00000 | ||
| 2 3/32" | 1/2" | 13/64" | 0.076" | 1/16" | Partially Threaded | Fine | — | 120,000 | AN5-20 | 5 | 94622A225 | 00000 | ||
3/8"-24 | ||||||||||||||
| 53/64" | 9/16" | 15/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN6-6 | 5 | 94622A231 | 00000 | ||
| 1 5/64" | 9/16" | 15/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN6-10 | 5 | 94622A232 | 00000 | ||
| 1 21/64" | 9/16" | 15/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN6-12 | 5 | 94622A233 | 00000 | ||
| 1 37/64" | 9/16" | 15/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN6-14 | 5 | 94622A234 | 00000 | ||
| 1 53/64" | 9/16" | 15/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN6-16 | 5 | 94622A235 | 00000 | ||
| 2 5/64" | 9/16" | 15/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN6-20 | 5 | 94622A236 | 00000 | ||
| 2 37/64" | 9/16" | 15/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN6-24 | 5 | 94622A237 | 00000 | ||
| 3 5/64" | 9/16" | 15/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN6-30 | 5 | 94622A238 | 00000 | ||
1/2"-20 | ||||||||||||||
| 1 3/32" | 3/4" | 19/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN8-10 | 1 | 94622A241 | 00000 | ||
| 1 11/32" | 3/4" | 19/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN8-12 | 1 | 94622A242 | 0000 | ||
| 1 19/32" | 3/4" | 19/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN8-14 | 1 | 94622A243 | 0000 | ||
| 1 27/32" | 3/4" | 19/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN8-16 | 1 | 94622A244 | 0000 | ||
| 2 3/32" | 3/4" | 19/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN8-20 | 1 | 94622A245 | 00000 | ||
| 2 19/32" | 3/4" | 19/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN8-24 | 1 | 94622A246 | 00000 | ||
| 3 3/32" | 3/4" | 19/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN8-30 | 1 | 94622A247 | 00000 | ||
| 3 19/32" | 3/4" | 19/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN8-34 | 1 | 94622A248 | 00000 | ||
| 4 3/32" | 3/4" | 19/64" | 0.106" | 3/32" | Partially Threaded | Fine | — | 120,000 | AN8-40 | 1 | 94622A249 | 00000 | ||
