Taper Washer
Taper Washers are specialized washers designed to provide a level seating surface for bolts used on sloped flange beams and channels. They are manufactured to ASTM, DIN, and ISO standards in carbon steel, alloy steel, or stainless steel. The taper compensates for the slope of the flange, ensuring proper bolt alignment and full load distribution. Available in square and rectangular designs with galvanized, zinc plated, or stainless finishes, they ensure durability and reliability. They are widely used in structural steel construction, bridges, heavy equipment, and industrial machinery installations.
Premium Quality Taper Washer Supplier in Dubai, UAE
Unifastener Industries LLC is a reliable supplier and manufacturer of premium-quality Taper Washers in Dubai, UAE. The company specializes in industrial fastening and structural support solutions designed for steel structures, channel sections, engineering works, construction projects, and heavy-duty industrial applications. Taper Washers are specially designed angled washers used to compensate for uneven surfaces and sloped flanges in structural steel applications. These washers help provide proper alignment, even load distribution, and secure fastening support for bolts and nuts in structural assemblies. Manufactured using high-grade materials and advanced production standards, Taper Washers provide excellent strength, corrosion resistance, durability, and reliable long-lasting performance for demanding industrial environments.
Standards:
– DIN 434 (taper washers for I-beams, square section)
– DIN 435 (taper washers for I-beams, rectangular section)
– ISO 9001 (manufacturing quality compliance)
– ASTM A36 (carbon steel for structural applications)
– ASTM F436 (hardened steel washers)
Grades:
– Carbon steel (plain, zinc plated, galvanized)
– Hardened alloy steel (for structural applications)
– Stainless steel A2 / A4 (AISI 304 / 316 for corrosion resistance)
Material Options:
– Carbon steel (HDG, zinc plated, black oxide)
– Stainless steel (passivated, polished)
– Alloy steel (hardened and tempered)
– Special grades on request (brass, bronze)
Size Range:
– Nominal bolt sizes: M8 to M36 (5/16″ to 1-1/2″)
– Thickness: 3mm to 12mm
– Angle: standard taper 8% to 10% as per DIN 434/435
Types:
– Square taper washer (DIN 434)
– Rectangular taper washer (DIN 435)
– Stainless steel taper washer
– Custom taper washers for non-standard beams
Properties:
– Designed to provide a level bearing surface for bolts on sloped flange beams
– Ensures full contact and proper load distribution
– Prevents bolt bending and fatigue failure
– Suitable for structural steel construction and heavy machinery
– Available in both metric and inch sizes
Coating Options:
– Hot-dip galvanized (ASTM A153 / DIN EN ISO 1461)
– Electro-zinc plated
– Black oxide finish
– Stainless steel natural finish
Add-ons:
– Can be supplied with flat or spring washers as sets
– Available with mill certificates and test reports
– Custom taper angles and sizes available on request










