McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    174 Products

    Medium-Strength Grade 5 Steel Square-Neck Carriage Bolts

    Image of Product. Back orientation. Carriage Bolts. Medium-Strength Grade 5 Steel Square-Neck Carriage Bolts.
    Image of Product. Front orientation. Carriage Bolts. Medium-Strength Grade 5 Steel Square-Neck Carriage Bolts, Fully Threaded.
    Image of Product. Front orientation. Carriage Bolts. Medium-Strength Grade 5 Steel Square-Neck Carriage Bolts, Partially Threaded.

    Fully Threaded

    Partially Threaded

    Made from Grade 5 steel, these bolts are suitable for fastening most machinery and equipment. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Grade 5 steel bolts are marked with three radial lines. Material meets SAE J429 specifications for quality. Dimensions meet ASME B18.5 specifications. Length is measured from under the head.
    Black Oxide—Black-oxide steel bolts are mildly corrosion resistant in dry environments.
    Zinc Plated—Zinc-plated steel bolts resist corrosion in wet environments.
    Zinc Flake Coated—Zinc-flake-coated steel bolts are 40 times as corrosion resistant as zinc-plated bolts and comparable to Magni-coated bolts.
    Head
    Neck
    Pkg.
    Lg.
    Threading
    Thread
    Spacing
    Dia.
    Ht.
    Wd.
    Lg.
    Tensile Strength,
    psi
    Specs. Met
    Pkg.
    Qty.
    1-24
    25-99
    100-Up
    Black-Oxide SAE Grade 5 Steel
     
    3/8"-16
    3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4291090185A1190000000000000000
    1"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4291090185A12000000000000000
    1 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4291090185A121000000000000000
    1 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429590185A122000000000000
    2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429590185A123000000000000
    2 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429590185A124000000000000000
    2 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429590185A12500000000000000
    2 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429590185A12600000000000000
    3"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429590185A12700000000000000
    4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A128000000000000
    5"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A129000000000000
    6"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A130000000000000
     
    Zinc-Plated SAE Grade 5 Steel
     
    3/8"-16
    3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4295090185A621000000000000000
    7/8"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4291090185A234000000000000000
    1"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4295090185A624000000000000000
    1 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4292590185A626000000000000000
    1 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4292590185A628000000000000000
    1 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4292590185A630000000000000000
    2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4292590185A632000000000000000
    2 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4292590185A633000000000000000
    2 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4292590185A634000000000000000
    2 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429590185A424000000000000
    3"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4292590185A636000000000000000
    3 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4291090185A235000000000000000
    3 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4291090185A6380000000000000
    4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J4291090185A64000000000000000
    4 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429590185A425000000000000000
    5"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A426000000000000
    5 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A427000000000000
    6"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A428000000000000
    6 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A236000000000000
    7"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A237000000000000
    7 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A238000000000000
    8"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A239000000000000
    9"Partially ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A240000000000000
    10"Partially ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A241000000000000
     
    Zinc-Flake-Coated SAE Grade 5 Steel
     
    3/8"-16
    1"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429590185A179000000000000000
    1 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429590185A180000000000000000
    1 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A181000000000000000
    2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A182000000000000
    3"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A186000000000000
    4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A187000000000000
    6"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"120,000ASME B18.5, SAE J429190185A18900000000000000
     

    18-8 Stainless Steel Square-Neck Carriage Bolts

    Image of Product. Back orientation. Carriage Bolts. 18-8 Stainless Steel Square-Neck Carriage Bolts.
    Image of Product. Front orientation. Carriage Bolts. 18-8 Stainless Steel Square-Neck Carriage Bolts, Fully Threaded.
    Image of Product. Front orientation. Carriage Bolts. 18-8 Stainless Steel Square-Neck Carriage Bolts, Partially Threaded.

    Fully Threaded

    Partially Threaded

    Made from 18-8 stainless steel, these bolts have good chemical resistance and may be mildly magnetic. They're a good choice for ACQ-treated (arsenic-free) lumber. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Length is measured from under the head. Dimensions meet ASME B18.5 or DIN 603 specifications. Some also meet ISO 8678. DIN 603 is functionally equivalent to ISO 8678 with slight differences in head diameter, head height, and length tolerances.
    Match the thread spacing of mating components.
    Coarse Thread—Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads per inch.
    Head
    Neck
    Lg.
    Threading
    Min. Thread
    Lg.
    Thread
    Spacing
    Dia.
    Ht.
    Wd.
    Lg.
    Tensile Strength,
    psi
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    3/8"-16
    3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.51092356A62200000
    1"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.51092356A6240000
    1 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.51092356A6260000
    1 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.51092356A6280000
    1 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.51092356A6300000
    2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.51092356A6320000
    2 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.51092356A6330000
    2 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5592356A6340000
    2 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5592356A6350000
    3"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5592356A6360000
    3 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.51092356A14700000
    3 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5592356A6380000
    3 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5592356A1480000
    4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5592356A6400000
    4 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5592356A3130000
    4 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5592356A6420000
    4 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A1490000
    5"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5592356A6440000
    5 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5592356A6460000
    6"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5592356A6480000
    6 1/2"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A6490000
    7"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A6500000
    7 1/2"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A1690000
    8"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A6520000
    8 1/2"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A6540000
    9"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A6570000
    9 1/2"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A1710000
    10"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A6620000
    11"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A1720000
    12"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A1730000
    14"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A1740000
    16"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A1750000
    18"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5192356A17600000
     

    Low-Strength Steel Square-Neck Carriage Bolts

    Image of Product. Back orientation. Carriage Bolts. Low-Strength Steel Square-Neck Carriage Bolts.
    Image of Product. Front orientation. Carriage Bolts. Low-Strength Steel Square-Neck Carriage Bolts, Fully Threaded.
    Image of Product. Back orientation. Carriage Bolts. Low-Strength Steel Square-Neck Carriage Bolts, Partially Threaded.

    Fully Threaded

    Partially Threaded

    About half the strength of medium-strength bolts, these Grade 2 bolts are for light duty fastening. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Material meets ASTM A307 or SAE J429 specifications for quality. Dimensions meet ASME B18.5 specifications. Length is measured from under the head.
    Zinc Plated—Zinc-plated steel bolts resist corrosion in wet environments.
    Hot-Dipped Galvanized—Hot-dipped galvanized steel bolts have a thick coating for better corrosion resistance than zinc-plated steel bolts. They meet ASTM A153 specifications for quality of hot-dipped coatings. They’re a good choice for ACQ-treated (arsenic-free) lumber. Bolts must be used with hot-dipped galvanized steel nuts (sold separately).
    Bolts
    Hex Nuts
    Head
    Neck
    Lg.
    Threading
    Min. Thread
    Lg.
    Thread
    Spacing
    Dia.
    Ht.
    Wd.
    Lg.
    Tensile Strength,
    psi
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated SAE Grade 2 Steel
     
    3/8"-16
    3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4295093548A622000000———0
    1"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J42910093548A62400000———0
    1 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J42910093548A62600000———0
    1 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J42910093548A62800000———0
    1 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4295093548A63000000———0
    2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4295093548A63200000———0
    2 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4295093548A63300000———0
    2 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4295093548A63400000———0
    2 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4295093548A63500000———0
    3"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4295093548A63600000———0
    3 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4295093548A63700000———0
    3 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4295093548A63800000———0
    3 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4292593548A63900000———0
    4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4292593548A64000000———0
    4 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4292593548A64200000———0
    5"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4292593548A64400000———0
    5 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4292593548A64600000———0
    6"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4292593548A64800000———0
    6 1/2"Partially Threaded1 1/2"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4292593548A64900000———0
    7"Partially Threaded6"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4291093548A65000000———0
    8"Partially Threaded6"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4291093548A65200000———0
    8 1/2"Partially Threaded6"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4291093548A65300000———0
    9"Partially Threaded6"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4291093548A65400000———0
    10"Partially Threaded6"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J4291093548A65600000———0
    12"Partially Threaded1 1/4"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A307, SAE J429593548A65900000———0
     
    Hot-Dipped Galvanized SAE Grade 2 Steel
     
    3/8"-16
    1"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3075093604A6670000010090371A031000000
    1 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3075093604A6690000010090371A03100000
    1 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3075093604A6710000010090371A03100000
    1 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3072593604A6730000010090371A03100000
    2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3075093604A6750000010090371A03100000
    2 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3072593604A6770000010090371A03100000
    2 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3072593604A6790000010090371A03100000
    3"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3072593604A6810000010090371A03100000
    3 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3072593604A6830000010090371A03100000
    4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3072593604A6850000010090371A03100000
    4 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3071093604A6870000010090371A03100000
    5"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3071093604A6890000010090371A03100000
    5 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3071093604A6910000010090371A03100000
    6"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3071093604A6930000010090371A03100000
    6 1/2"Partially Threaded1 1/4"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3071093604A6950000010090371A03100000
    7"Partially Threaded1 1/4"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3071093604A6970000010090371A03100000
    8"Partially Threaded1 1/4"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3071093604A6990000010090371A03100000
    9"Partially Threaded1 1/4"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3071093604A7010000010090371A03100000
    10"Partially Threaded1 1/4"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A3071093604A7030000010090371A03100000
    12"Partially Threaded1 1/4"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A307593604A7040000010090371A03100000
    14"Partially Threaded1 1/4"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A307593604A7060000010090371A03100000
    16"Partially Threaded1 1/4"Coarse
    0.844"0.208"0.39"0.22"60,000ASME B18.5, ASTM A153, ASTM A307593604A7080000010090371A03100000
     

    Highly Corrosion-Resistant 316 Stainless Steel Square-Neck Carriage Bolts

    Image of Product. Back orientation. Carriage Bolts. Highly Corrosion-Resistant 316 Stainless Steel Square-Neck Carriage Bolts.
    Image of Product. Front orientation. Carriage Bolts. Highly Corrosion-Resistant 316 Stainless Steel Square-Neck Carriage Bolts, Fully Threaded.
    Image of Product. Front orientation. Carriage Bolts. Highly Corrosion-Resistant 316 Stainless Steel Square-Neck Carriage Bolts, Partially Threaded.

    Fully Threaded

    Partially Threaded

    More corrosion resistant than 18-8 stainless steel bolts, these 316 stainless steel bolts have excellent resistance to chemicals and salt water and are a good choice for ACQ-treated (arsenic-free) lumber. They may be mildly magnetic. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Dimensions meet ASME B18.5 or DIN 603 specifications. Length is measured from under the head.
    Head
    Neck
    Lg.
    Threading
    Min. Thread
    Lg.
    Thread
    Spacing
    Dia.
    Ht.
    Wd.
    Lg.
    Tensile Strength,
    psi
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    316 Stainless Steel
     
    3/8"-16
    3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5593180A41800000
    1"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5593180A4200000
    1 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5593180A4250000
    1 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5593180A4300000
    1 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5593180A4350000
    2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5593180A4400000
    2 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5593180A45000000
    3"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5193180A4600000
    3 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5193180A4640000
    4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5193180A4680000
    4 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5193180A4730000
    5"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5193180A4770000
    6"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5193180A4850000
    7"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5193180A4940000
    8"Partially Threaded1"Coarse
    0.844"0.208"0.39"0.22"70,000ASME B18.5193180A50300000
     

    High-Strength Grade 8 Steel Square-Neck Carriage Bolts

    Image of Product. Front orientation. Carriage Bolts. High-Strength Grade 8 Steel Square-Neck Carriage Bolts.
    Image of Product. Back orientation. Carriage Bolts. High-Strength Grade 8 Steel Square-Neck Carriage Bolts.
    Made from Grade 8 steel, these bolts are at least 25% stronger than medium-strength steel bolts and can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. A square neck keeps these bolts from turning when tightening a nut. A smooth, rounded head provides a finished look. A zinc yellow-chromate plating provides corrosion resistance in wet environments. Grade 8 steel bolts are marked with six radial lines. Material meets SAE J429 specifications for quality. Dimensions meet ASME B18.5 specifications. Length is measured from under the head.
    Head
    Neck
    Lg.
    Threading
    Thread
    Spacing
    Dia.
    Ht.
    Wd.
    Lg.
    Tensile Strength,
    psi
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated SAE Grade 8 Steel
     
    3/8"-16
    1"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"150,000ASME B18.5, SAE J4295097000A521000000
    1 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"150,000ASME B18.5, SAE J4295097000A52200000
    1 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"150,000ASME B18.5, SAE J4292597000A52300000
    2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"150,000ASME B18.5, SAE J4292597000A52400000
    2 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"150,000ASME B18.5, SAE J4292597000A52500000
    3"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"150,000ASME B18.5, SAE J4292597000A52600000
     

    Medium-Strength Grade 5 Steel Knurled-Neck Carriage Bolts

    Image of Product. Front orientation. Carriage Bolts. Medium-Strength Grade 5 Steel Knurled-Neck Carriage Bolts.
    Image of Product. Back orientation. Carriage Bolts. Medium-Strength Grade 5 Steel Knurled-Neck Carriage Bolts.
    Made from Grade 5 steel, these bolts are suitable for fastening most machinery and equipment and are zinc plated to resist corrosion in wet environments. A knurled neck grips the inside of the hole to keep them from turning when tightening a nut. A smooth, rounded head provides a finished look. Grade 5 steel bolts are marked with three radial lines. Material meets SAE J429 specifications for quality. Length is measured from under the head.
    Head
    Neck
    Lg.
    Threading
    Min. Thread
    Lg.
    Thread
    Spacing
    Dia.
    Ht.
    Dia.
    Lg.
    Tensile Strength,
    psi
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated SAE Grade 5 Steel
     
    3/8"-16
    1"Partially Threaded7/16"Coarse
    0.844"0.208"0.41"0.44"120,000SAE J429
    2598060A810000000
    1 1/4"Partially Threaded1/2"Coarse
    0.844"0.208"0.41"0.63"120,000SAE J429
    1098060A8200000
    1 1/2"Partially Threaded3/4"Coarse
    0.844"0.208"0.41"0.63"120,000SAE J429
    1098060A8300000
    1 3/4"Partially Threaded1"Coarse
    0.844"0.208"0.41"0.63"120,000SAE J429
    1098060A8400000
    2"Partially Threaded1"Coarse
    0.844"0.208"0.41"0.63"120,000SAE J429
    1098060A8500000
    2 1/2"Partially Threaded1"Coarse
    0.844"0.208"0.41"0.63"120,000SAE J429
    1098060A8600000
    3"Partially Threaded1"Coarse
    0.844"0.208"0.41"0.63"120,000SAE J429
    1098060A8700000
     

    Square-Neck Flat-Head Plow Bolts

    Image of Product. Front orientation. Plow Bolts. Square-Neck Flat-Head Plow Bolts.
    Image of Specification. Back orientation. Contains Annotated. Plow Bolts. Square-Neck Flat-Head Plow Bolts, Fully Threaded.
    Image of Specification. Back orientation. Contains Annotated. Plow Bolts. Square-Neck Flat-Head Plow Bolts, Partially Threaded.

    Fully Threaded

    Partially Threaded

    Used on heavy equipment, such as plows, these bolts have a smooth, flat head that's angled underneath to sit flush within countersunk holes. A square neck keeps them from turning when tightening a nut. The zinc plating provides corrosion resistance in wet environments. Material meets SAE J429 specifications for quality. Dimensions meet ASME B18.9 specifications. Length is measured from the top of the head. Head height includes the neck.
    Head
    Lg.
    Threading
    Min. Thread
    Lg.
    Thread
    Spacing
    Dia.
    Ht.
    Countersink
    Angle
    Neck
    Wd.
    Tensile Strength,
    psi
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated SAE Grade 5 Steel
     
    3/8"-16 Threads
    1"Fully ThreadedCoarse
    0.708"0.312"82°
    0.39"120,000ASME B18.9, SAE J4295090911A624000000
    1 1/4"Fully ThreadedCoarse
    0.708"0.312"82°
    0.39"120,000ASME B18.9, SAE J4291090911A8150000
    1 1/2"Fully ThreadedCoarse
    0.708"0.312"82°
    0.39"120,000ASME B18.9, SAE J4291090911A8160000
    2"Fully ThreadedCoarse
    0.708"0.312"82°
    0.39"120,000ASME B18.9, SAE J4292590911A6320000
    2 1/4"Fully ThreadedCoarse
    0.708"0.312"82°
    0.39"120,000ASME B18.9, SAE J4292590911A63300000
    3"Partially Threaded1"Coarse
    0.708"0.312"82°
    0.39"120,000ASME B18.9, SAE J4291090911A6370000
     

    Low-Strength Steel Knurled-Neck Carriage Bolts

    Image of Product. Back orientation. Carriage Bolts. Low-Strength Steel Knurled-Neck Carriage Bolts.
    Image of Product. Front orientation. Carriage Bolts. Low-Strength Steel Knurled-Neck Carriage Bolts, Fully Threaded.
    Image of Product. Front orientation. Carriage Bolts. Low-Strength Steel Knurled-Neck Carriage Bolts, Partially Threaded.

    Fully Threaded

    Partially Threaded

    About half the strength of medium-strength bolts, these bolts are for light duty fastening. The zinc plating provides corrosion resistance in wet environments. A knurled neck grips the inside of the hole to keep them from turning when tightening a nut. A smooth, rounded head provides a finished look. Material meets ASTM A307 and SAE J429 specifications for quality. Length is measured from under the head.
    Head
    Neck
    Lg.
    Threading
    Min. Thread
    Lg.
    Thread
    Spacing
    Dia.
    Ht.
    Dia.
    Lg.
    Tensile Strength,
    psi
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated SAE Grade 2 Steel
     
    3/8"-16
    3/4"Fully ThreadedCoarse
    0.844"0.208"0.41"0.28"60,000ASTM A307, SAE J429
    2598060A640000000
    1"Fully ThreadedCoarse
    0.844"0.208"0.41"0.44"60,000ASTM A307, SAE J429
    2598060A65000000
    1 1/4"Fully ThreadedCoarse
    0.844"0.208"0.41"0.63"60,000ASTM A307, SAE J429
    2598060A66000000
    1 1/2"Fully ThreadedCoarse
    0.844"0.208"0.41"0.63"60,000ASTM A307, SAE J429
    598060A6900000
    2"Partially Threaded1"Coarse
    0.844"0.208"0.41"0.63"60,000ASTM A307, SAE J429
    1098060A7200000
    2 1/2"Partially Threaded1"Coarse
    0.844"0.208"0.41"0.63"60,000ASTM A307, SAE J429
    1098060A74000000
    3"Partially Threaded1"Coarse
    0.844"0.208"0.41"0.63"60,000ASTM A307, SAE J429
    598060A75000000
     

    Bronze Square-Neck Carriage Bolts

    Image of Product. Front orientation. Carriage Bolts. Bronze Square-Neck Carriage Bolts.
    Image of Product. Back orientation. Carriage Bolts. Bronze Square-Neck Carriage Bolts.
    Made from bronze, these bolts provide corrosion resistance to salt water, gases, and sewage, and are nonmagnetic and electrically conductive. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look. Dimensions meet ASME B18.5 specifications. Length is measured from under the head.
    Head
    Neck
    Lg.
    Threading
    Thread
    Spacing
    Dia.
    Ht.
    Wd.
    Lg.
    Tensile
    Strength
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Silicon Bronze
     
    3/8"-16
    3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"Not RatedASME B18.5194050A17000000
    1"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"Not RatedASME B18.5194050A4100000
    1 1/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"Not RatedASME B18.5194050A1800000
    1 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"Not RatedASME B18.5194050A4200000
    1 3/4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"Not RatedASME B18.5194050A4250000
    2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"Not RatedASME B18.5194050A4300000
    2 1/2"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"Not RatedASME B18.5194050A4400000
    3"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"Not RatedASME B18.5194050A4500000
    4"Fully ThreadedCoarse
    0.844"0.208"0.39"0.22"Not RatedASME B18.5194050A1900000
     
    back to top