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APEX offers full-service design, engineering and manufacturing to your specifications. Our custom fasteners have enjoyed great success supplying all types and sizes of businesses in most sectors of industry.
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Authorized Distributor for:

Bonded Washers

Bonded_Washer.jpg
 Bonded washers or sealing washers are used in applications that require a stronger seal than conventional washers might provide. Bonded washers are slightly conical metal washers with a bonded neoprene or EPDM rubber backing. They are available in galvanized steel and stainless steel and in a range of sizes. Bonded washers are commonly used in roofing and plumbing applications

Bonded Washers are available in Galvanized Steel (-SG) and Stainless Steel (-SS).


 Screw Size ID OD
Basic Part Number (inch) (mm) (inch) (mm) (inch) (mm)
WBON04X.120x.250 #4 2.9mm 0.120 3.3 1/4"
WBON06X.150x.375 #6 3.5mm 0.150 3.8 3/8" 9.5mm
WBON06X.180x.375 #6 3.5mm 0.180 4.6 3/8" 9.5mm
WBON08X.180x.375 #8 4.2mm 0.180 4.6 3/8" 9.5mm
WBON08X.180x.500 #8 4.2mm 0.180 4.6 1/2"
WBON10X.200x.375 #10 4.8mm 0.200 5.1 3/8" 9.5mm
WBON10X.200x.437 #10 4.8mm 0.200 5.1 7/16" 11mm
WBON10X.200x.472 #10 4.8mm 0.200 5.1
12mm
WBON10X.200x.500 #10 4.8mm 0.200 5.1 1/2"
WBON12X.230x.375 #12 5.5mm 0.230 6.1 3/8" 9.5mm
WBON12X.240x.551 #12 5.5mm 0.240 6.1
14mm
WBON12X.240x.562 #12 5.5mm 0.240 6.1 9/16"
WBON12X.240x.590 #12 5.5mm 0.240 6.1
15mm
WBON12X.240x.625 #12 5.5mm 0.240 6.1 5/8" 16mm
WBON14X.275x.551 #14 6.3mm 0.275 7.0
14mm
WBON14X.275x.590 #14 6.3mm 0.275 7.0
15mm
WBON14X.275x.625 #14 6.3mm 0.275 7.0 5/8" 16mm
WBON14X.275x.718 #14 6.3mm 0.275 7.0 23/32"
WBON17X.305x.625 #17 7.0mm 0.305 7.7 5/8" 16mm
WBON31X.330x.750 5/16" 8.0mm 0.330 8.4 3/4" 19mm
WBON31X.360x.718 5/16" 8.0mm 0.360 8.4 23/32"
WBON37X.410x.718 3/8" 9.5mm 0.410 11.0 23/32"
WBON37X.434x.750 3/8" 9.5mm 0.434 11.0 3/4" 19mm
WBON37X.434x.875 3/8" 9.5mm 0.434 11.0 7/8" 22mm
WBON37X.434x1.00 3/8" 9.5mm 0.434 11.0 1" 25mm
WBON43X.475x.750 7/16" 11.1mm 0.475 12.1 3/4" 19mm
WBON43X.475x.875 7/16" 11.1mm 0.475 12.1 7/8" 22mm
WBON43X.475x1.00 7/16" 11.1mm 0.475 12.1 1" 25mm
WBON50X.532x1.00 1/2" 12.7mm 0.532 13.5 1" 25mm
WBON50X.532x1.12 1/2" 12.7mm 0.532 13.5 1 1/8" 28mm
WBON62X.650x1.18 5/8" 15.9mm 0.650 16.5 1 3/16" 30mm
WBON62X.650x1.25 5/8" 15.9mm 0.650 16.5 1 1/4" 32mm
WBON62X.6870x1.18 5/8" 15.9mm 0.687 16.5 1 3/16" 30mm
WBON75X.810x1.50 3/4" 19.0mm 0.810 20.6 1 1/2" 38mm
WBON87X.910x1.50 7/8" 22.2mm 0.910 23.1 1 1/2" 38mm
WBON100X1.04x2.00 1" 25.4mm 1.040 26.4 2"
WBON106X1.10x2.00 1 1/16" 27.0mm 1.100 28.0 2"
WBON106X1.10x2.25 1 1/16" 27.0mm 1.100 28.0 2 1/4"
WBON106X1.10x2.50 1 1/16" 27.0mm 1.100 28.0 2 1/2"
WBON112X1.15x2.00 1 1/8" 28.6mm 1.150 29.6 2"
WBON112X1.15x2.25 1 1/8" 28.6mm 1.150 29.6 2 1/4"
WBON112X1.15x2.50 1 1/8" 28.6mm 1.150 29.6 2 1/2"
WBON118X1.21x2.00 1 3/16" 30.0mm 1.210 31.0 2"
WBON118X1.21x2.25 1 3/16" 30.0mm 1.210 31.0 2 1/4"
WBON118X1.21x2.50 1 3/16" 30.0mm 1.210 31.0 2 1/2"
WBON125X1.29x2.00 1 1/4" 31.8mm 1.290 32.8 2"
WBON125X1.29x2.25 1 1/4" 31.8mm 1.290 32.8 2 1/4"
WBON125X1.29x2.50 1 1/4" 31.8mm 1.290 32.8 2 1/2"



APEX FASTENERS, Inc - 15858 Business Center Drive - Irwindale, CA 91706 USA
APEX Fasteners supplies standard and custom screws, nut retainers, shoulder screws, plastites and taptites, all types of rivets, spring steel fasteners and special stampings, sems screws in standard, fractional or metric to electronics, aviation and other OEM industries worldwide. ApexFasteners.com custom manufactures screw machine components for electronic enclosure hardware as well as cold forming and cold headed specials for assembly and production requirements.
Tel: (626) 962-2219 - info@apexfasteners.com
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