Clear All
Neck Type Neck Type | Show |
---|
![]() | Key Locking |
Neck Type Neck Type | Hide |
---|
![]() | ![]() |
Square | Key Locking |
Head Type Head Type |
---|
![]() | Flat |
Threading Threading |
---|
![]() | Fully Threaded |
![]() | Partially Threaded |
Fastener Strength Grade/Class Fastener StrengthGrade/Class |
---|
![]() | |
Tensile Strength Tensile Strength |
---|
|
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
---|
|
Plow Bolt Trade Number Plow Bolt Trade Number |
---|
|
Hardness Hardness |
---|
|
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
---|
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
---|
|
Specifications Met Specifications Met |
---|
About Hex Head Screws and Bolts
More
Key-Locking Plow Bolts


Fully Threaded

Partially Threaded
Also known as reverse-key plow screws and bucket-tooth bolts, these bolts have a locking key that keeps them from turning when tightening a nut. Often used on heavy equipment, such as plows, they have a smooth, flat head that's angled underneath to sit flush within countersunk holes. Material meets SAE J429 specifications for quality. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
---|---|---|---|---|---|---|---|---|---|
Lg. | Threading | Min. Thread Lg. | Thread Spacing | Dia. | Ht. | Tensile Strength, psi | Specifications Met | Each | |
Grade 8 Steel | |||||||||
5/8"-11 | |||||||||
2" | Fully Threaded | __ | Coarse | 1.121" | 0.414" | 150,000 | SAE J429 | 000000000 | 00000 |
2 1/2" | Partially Threaded | 1 1/2" | Coarse | 1.121" | 0.414" | 150,000 | SAE J429 | 000000000 | 0000 |
3" | Partially Threaded | 1 1/2" | Coarse | 1.121" | 0.414" | 150,000 | SAE J429 | 000000000 | 0000 |
3 1/2" | Partially Threaded | 1 1/2" | Coarse | 1.121" | 0.414" | 150,000 | SAE J429 | 000000000 | 0000 |
4" | Partially Threaded | 1 1/2" | Coarse | 1.121" | 0.414" | 150,000 | SAE J429 | 000000000 | 0000 |
5" | Partially Threaded | 1 1/2" | Coarse | 1.121" | 0.414" | 150,000 | SAE J429 | 000000000 | 0000 |
3/4"-10 | |||||||||
3" | Partially Threaded | 1 3/4" | Coarse | 1.277" | 0.44" | 150,000 | SAE J429 | 000000000 | 0000 |
3 1/2" | Partially Threaded | 1 3/4" | Coarse | 1.277" | 0.44" | 150,000 | SAE J429 | 000000000 | 0000 |
4" | Partially Threaded | 1 3/4" | Coarse | 1.277" | 0.44" | 150,000 | SAE J429 | 000000000 | 0000 |
4 1/2" | Partially Threaded | 1 3/4" | Coarse | 1.277" | 0.44" | 150,000 | SAE J429 | 000000000 | 00000 |
5" | Partially Threaded | 1 3/4" | Coarse | 1.277" | 0.44" | 150,000 | SAE J429 | 000000000 | 00000 |
6" | Partially Threaded | 1 3/4" | Coarse | 1.277" | 0.44" | 150,000 | SAE J429 | 000000000 | 00000 |
7/8"-9 | |||||||||
3 1/2" | Partially Threaded | 2" | Coarse | 1.516" | 0.616" | 150,000 | SAE J429 | 000000000 | 00000 |
4" | Partially Threaded | 2" | Coarse | 1.516" | 0.616" | 150,000 | SAE J429 | 000000000 | 00000 |
4 1/2" | Partially Threaded | 2" | Coarse | 1.516" | 0.616" | 150,000 | SAE J429 | 000000000 | 00000 |