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    4 Products

    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.

    Fully 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
    Thread
    Spacing
    Dia.
    Ht.
    Wd.
    Lg.
    Tensile Strength,
    psi
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    8-32
    3/8"Fully ThreadedCoarse
    0.303"0.059"0.16"0.11"70,000ASME B18.525000000000000000
    1/2"Fully ThreadedCoarse
    0.303"0.059"0.16"0.11"70,000ASME B18.52500000000000000
    5/8"Fully ThreadedCoarse
    0.303"0.059"0.16"0.11"70,000ASME B18.52500000000000000
    3/4"Fully ThreadedCoarse
    0.303"0.059"0.16"0.11"70,000ASME B18.52500000000000000
     
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