Best Carriage Bolts Under $50 (2026)
We ranked carriage-bolt kits under $50 by material/coating, pack size, user rating, and practical suitability for outdoor and structural uses
Top Picks
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1
Zonon Stainless Steel Carriage Bolts Kit (50 pcs) with Nuts & Washers
A versatile kit of stainless steel carriage bolts, hex nuts, and flat washers in 5/16-18 size. Includes 50 bolts, 50 nuts, and 50 washers for a complete fastener set. Customers note solid construction and good fit
- all-in-one fastener kit
- stainless steel for corrosion resistance
- precise 5/16-18 thread
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2
1/2 in. x 3-1/2 in. Carriage Bolt Kit, ceramic black ruspert coating
Carriage bolt kit includes 12 bolts, 12 washers, and 12 nuts with a 5-layer ceramic black ruspert coating for rust resistance. Suitable for exterior use and heavy-duty projects like decks and gazebos. Customer notes emphasize quality and value for money
- rust-resistant coating
- complete bolt-kit (bolts, washers, nuts)
- semiflush flat head design
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3
1/2 in x 4 in Carriage Bolt Kit (12 bolts, 12 washers, 12 nuts) ceramic black ruspert coated
Carriage bolt kit with ceramic black ruspert coating for exterior use. Includes 12 bolts, 12 washers, and 12 hex nuts; designed for rust resistance and durability. Customers note good build quality and value for money
- rust-resistant coating
- complete kit with nuts and washers
- suitable for exterior lumber
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4
3/8 x 2 in galvanized carriage bolt kit (50 pcs) by Makers Bolt
Galvanized carriage bolts kit includes bolts, washers, and nuts for exterior projects. Semi-flush flat head aids decking and pergola work; corrosion-resistant coating enhances durability. Customers note good quality and value for money, with mixed feedback on washers
- complete hardware kit
- corrosion-resistant coating
- flat head for semi-flush finish
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5
1/2 in x 5 in black carriage bolt kit (12 bolts, 12 washers, 12 nuts)
Carriage bolt kit with ceramic black ruspert coating for exterior use. Includes 12 bolts, 12 washers, and 12 hex nuts; rust resistance is noted as 2X that of galvanized. Customers cite solid build and good value, with usefulness for pergolas and decks
- ruspert-coated rust resistance
- includes complete hardware set
- semi-flush flat head design
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6
Galvanized carriage bolt kit 1/4" x 1" (100 pk) with washers and nuts
Galvanized 1/4" carriage bolt kit includes 100 bolts, 100 USS washers, and 100 hex nuts. Hot dip galvanized for exterior use; provides semi-flush flat head for decks and outdoor projects. Customer note: high quality and good value
- galvanized exterior-grade
- includes bolts, washers, nuts
- flat head delivers semi-flush finish
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7
1/2 in x 6 in Carriage Bolt Kit with 12 bolts, washers & nuts
Ceramic black ruspert coated carriage bolts kit for exterior use. Includes 12 bolts, 12 washers, and 12 nuts; provides rust resistance and semi-flush flat head for decks and pergolas. Customer note: good quality and value for money
- rust-resistant coating
- includes full hardware kit
- semi-flush head for finished look
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8
1/4 in x 1-1/2 in galvanized carriage bolt kit (100 pcs)
Galvanized carriage bolt kit includes 100 bolts, 100 washers, and 100 hex nuts. Hot-dip galvanized for exterior use and corrosion resistance; suitable for decks and outdoor structures. Customer: great quality and value for money
- 100 pcs bolts, washers, nuts
- hot-dip galvanized for exterior durability
- meets ASME/ASTM standards
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9
Hillman galvanized carriage bolts 1/4 x 6, 100 ct
Carriage bolts for fastening wood to wood or wood to metal with a semi-flush flat head. Self-locking square underside reduces need for a driving tool; galvanized finish resists rust. Customer insight notes good quality and value, with mixed views on thread quality
- rust-resistant galvanized finish
- self-locking square underside
- no washer needed
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10
1/4 in x 2-1/2 in galvanized carriage bolt kit (100 pcs) with nuts & washers
Galvanized carriage bolt kit includes 100 bolts, 100 washers, and 100 hex nuts. Provides corrosion resistance for exterior use; flat head for semi-flush finish. One customer note highlights quality and value for money
- complete hardware kit
- hot-dip galvanized coating
- meets industry standards