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3/8UNF Hex Bolts Stainless Steel

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3/8” UNF Hex Head Bolts – 316 Stainless Steel for Precision Fastening and Corrosion Resistance

Our 3/8 inch UNF hex head bolts are precision-engineered from durable 316 stainless steel, offering superior corrosion resistance, strength, and fine-thread accuracy. Featuring a Unified National Fine (UNF) thread, these bolts are ideal for applications that require tight tolerances and secure, vibration-resistant fastening.

With a hex head for easy installation, these bolts are trusted in marine, automotive, industrial, and mechanical engineering applications, especially where long-lasting performance and resistance to harsh conditions are critical.

Key Features of 3/8" UNF Stainless Steel Hex Head Bolts:

Manufactured from 316 stainless steel – excellent rust and corrosion resistance
3/8” UNF fine thread – perfect for high-precision fastening and anti-vibration performance
Hex head allows for easy tightening using spanners, wrenches, or sockets
Ideal for automotive, marine, structural, and high-strength mechanical applications
Compatible with UNF stainless steel nuts and washers
Available in a range of lengths to suit various installation needs
Suitable for professional trades, engineering workshops, and industrial use
Supplied in trade or bulk packs, with fast nationwide shipping

Use 3/8” UNF 316 stainless steel hex head bolts where precision and corrosion protection matter most.

Code	Image	Product Name	Grade	Price
3161561	$Hex Bolt 3\8UNF x 1.1\2 304 x 1$ $Hex Bolt 3\8UNF x 1.1\2 304 x 1$	Hex Bolt 3\8UNF x 1.1\2 304 x 1 More Info	304	$3.05
3161562	$Hex Bolt 3\8UNF x 1.3\4 304 x 1$ $Hex Bolt 3\8UNF x 1.3\4 304 x 1$	Hex Bolt 3\8UNF x 1.3\4 304 x 1 More Info	304	$2.39
3161563	$Hex Bolt 3\8UNF x 2 304 x 1$ $Hex Bolt 3\8UNF x 2 304 x 1$	Hex Bolt 3\8UNF x 2 304 x 1 More Info	304	$4.74
3161564	$Hex Bolt 3\8UNF x 2.1\2 304 x 1$ $Hex Bolt 3\8UNF x 2.1\2 304 x 1$	Hex Bolt 3\8UNF x 2.1\2 304 x 1 More Info	304	$4.34
3161565	$Hex Bolt 3\8UNF x 3 304 x 1$ $Hex Bolt 3\8UNF x 3 304 x 1$	Hex Bolt 3\8UNF x 3 304 x 1 More Info	304	$3.63
3161566	$Hex Bolt 3\8UNF x 3.1\4 304 x 1$ $Hex Bolt 3\8UNF x 3.1\4 304 x 1$	Hex Bolt 3\8UNF x 3.1\4 304 x 1 More Info	304	$10.09
3161567	$Hex Bolt 3\8UNF x 4 304 x 1$ $Hex Bolt 3\8UNF x 4 304 x 1$	Hex Bolt 3\8UNF x 4 304 x 1 More Info	304	$8.10

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3/8UNF Hex Bolts Stainless Steel

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3/8UNF Hex Bolts Stainless Steel

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