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The World's Strongest Stainless Steel Fasteners

BUMAX® stainless steel fasteners deliver exceptional strength, corrosion resistance, and long-term reliability for demanding industrial applications where performance cannot be compromised.

BUMAX high-strength stainless steel socket head cap screw with hex drive.

Designed for Critical Applications

BUMAX fasteners are trusted wherever strength, durability, and corrosion resistance matter most.

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Energy (Wind Turbines)

High-performance solutions for renewable energy applications

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Marine & Offshore

Corrosion-resistant components for harsh marine environments

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Aerospace & Defense

Precision-engineered parts meeting strict aerospace standards

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Industrial Machinery

Durable fasteners and components for heavy-duty machinery

Why Choose BUMAX Fasteners?

When standard stainless steel fasteners aren't enough, BUMAX delivers superior performance engineered for critical applications.

High-strength stainless steel grades

Outstanding corrosion resistance

Reliable performance in extreme environments

Precision manufacturing for consistent quality

Trusted across demanding industries worldwide

Shop BUMAX Fasteners
BUMAX stainless steel fasteners, including hex bolts, socket screws, countersunk screws, nut and washer.

Featured Products

Browse a selection of high-performance BUMAX stainless steel fasteners designed for demanding industrial applications.

BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, M16 x 2.00 x 50 mm, Bumax 109 Stainless Steel, ISO 4762

    BMX-S16-0050
$61.11
Package Qty
    2
View Details
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 25 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 25 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 25 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 25 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 25 mm, Bumax 88 Stainless Steel, ISO 10642

    BMX-F06-0025
$23.92
Package Qty
    10
View Details
BUMAX Socket Head Cap Screw, Flat Head, M4 x 0.70 x 20 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M4 x 0.70 x 20 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M4 x 0.70 x 20 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M4 x 0.70 x 20 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, Flat Head, M4 x 0.70 x 20 mm, Bumax 88 Stainless Steel, ISO 10642

    BMX-F04-0020
$19.18
Package Qty
    10
View Details
BUMAX Socket Head Cap Screw, Flat Head, M12 x 1.75 x 40 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M12 x 1.75 x 40 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M12 x 1.75 x 40 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M12 x 1.75 x 40 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, Flat Head, M12 x 1.75 x 40 mm, Bumax 88 Stainless Steel, ISO 10642

    BMX-F12-0040
$58.00
Package Qty
    5
View Details
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 30 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 30 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 30 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 30 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 30 mm, Bumax 88 Stainless Steel, ISO 10642

    BMX-F06-0030
$25.77
Package Qty
    10
View Details
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 40 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 40 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 40 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 40 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, Flat Head, M6 x 1.00 x 40 mm, Bumax 88 Stainless Steel, ISO 10642

    BMX-F06-0040
$31.27
Package Qty
    10
View Details
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, M12 x 1.75 x 20 mm, Bumax 88 Stainless Steel, ISO 4762

    BMX-S12-0020
$55.01
Package Qty
    5
View Details
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, M6 x 1.00 x 80 mm, Bumax 88 Stainless Steel, ISO 4762

    BMX-S06-0080
$73.78
Package Qty
    10
View Details
BUMAX Socket Head Cap Screw, Flat Head, M12 x 1.75 x 70 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M12 x 1.75 x 70 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M12 x 1.75 x 70 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, Flat Head, M12 x 1.75 x 70 mm, Bumax 88 Stainless Steel, ISO 10642 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, Flat Head, M12 x 1.75 x 70 mm, Bumax 88 Stainless Steel, ISO 10642

    BMX-F12-0070
$91.06
Package Qty
    5
View Details
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, M8 x 1.25 x 60 mm, Bumax 88 Stainless Steel, ISO 4762

    BMX-S08-0060
$32.17
Package Qty
    5
View Details
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, M6 x 1.00 x 16 mm, Bumax 88 Stainless Steel, ISO 4762

    BMX-S06-0016
$20.37
Package Qty
    10
View Details
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.
BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762 by Spaenaur Inc.

BUMAX Socket Head Cap Screw, M8 x 1.25 x 70 mm, Bumax 88 Stainless Steel, ISO 4762

    BMX-S08-0070
$35.81
Package Qty
    5
View Details
View All BUMAX Products

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