Economy Metal Washer – T Dimension Specifiable, Standard / Precision Grade | MISUMI

Product Overview

It is generally used as a component that is cushioned at the workpiece connector and plays a role of precise adjustment of the clearance on the cushioned part.
It can also be used to protect the surface of the connected part from being scratched by the nut and disperse the pressure generated by the nut on the connected part.

Dimensional Drawing

MISUMI Metal Washer Standard Grade T Size Selection / T Size Specified Type Drawing Gasket Specifications

Specification Overview

・Material Table

Precision	Type		Material	Surface Treatment
Precision	T Size Selection Type	T dimension configurable	Material	Surface Treatment
Normal	-	E-TWSSB	General structural steel or carbon steel	Black Oxide Film
	-	E-TWSSM	General structural steel or carbon steel	Electroless Nickel Plating
	-	E-TWSSS	SUS304 Equivalent	-
Precision	E-WASB	E-TWASB	General structural steel or carbon steel	Black Oxide Film
	E-WASM	E-TWASM	General structural steel or carbon steel	Electroless Nickel Plating
	E-WASS	E-TWASS	SUS304 Equivalent	-

If you require specific hardness for the product, please refer to

Hardened Metal Washer Products.

Specification Table

■ T Size Specification Type (Standard Grade)

Part Number		V												T Can be specified down to 0.5mm increments
Type	D	Selection												T Can be specified down to 0.5mm increments
E-TWSSB E-TWSSM E-TWSSS	4	2												1.0 to 10.0
	5	2	3
	6	2	3	4
	8	2	3	4	5	6
	10	2	3	4	5	6	8
	12		3	4	5	6	8	10
	13			4	5	6	8	10
	14			4	5	6	8	10
	15			4	5	6	8	10	12
	16			4	5	6	8	10	12
	20			4	5	6	8	10	12	15	16
	25					6	8	10	12	15	16	20
	30						8	10	12	15	16	20	25

■ T Size Selection Type (Precision Grade)

Part Number		V Selection													T Selection
Type	D	V Selection													T Selection
E-WASB E-WASM E-WASS	4	2													1		2
	5	2	3												1		2
	6	2	3	4											1		2
	6		3	4												1.5
	8	2	3	4	5	6									1		2		3	5
	8		3	4	5	6										1.5
	10	2	3	4	5	6	8								1		2		3	5
	10			4	5	6	8									1.5		2.5
	12		3	4	5	6	8	10							1		2		3	5
	12				5	6	8	10								1.5		2.5
	13			4	5	6	8	10							1		2		3	5
	13					6	8									1.5		2.5
	14			4	5	6	8	10							1		2		3	5
	14					6	8	10								1.5
	15			4	5	6	8	10	12						1		2		3	5
	15					6	8	10	12							1.5
	16			4	5	6	8	10	12						1		2		3	5
	16					6	8	10	12							1.5
	20			4	5	6	8	10	12	15	16						2		3	5
	20					6		10		15						1.5		2.5
	25					6	8	10	12	15	16	20					2		3	5
	30						8	10	12	15	16	20	25				2		3	5
	35							10	12	15	16	20	25						3	5	10
	40							10	12	15	16	20	25	30					3	5	10
	50							10	12	15	16	20	25	30					3	5	10
	60									15	16	20	25	30					3	5	10

■ T Size Specification Type (Precision Grade)

Part Number		V Selection												T Specify in 0.5 mm units
Type	D	V Selection												T Specify in 0.5 mm units
E-TWASB E-TWASM E-TWASS	4	2												1.0 to 10.0
	5	2	3
	6	2	3	4
	8	2	3	4	5	6
	10	2	3	4	5	6	8
	12		3	4	5	6	8	10
	13			4	5	6	8	10
	14			4	5	6	8	10
	15			4	5	6	8	10	12
	16			4	5	6	8	10	12
	20			4	5	6	8	10	12	15	16
	25					6	8	10	12	15	16	20
	30						8	10	12	15	16	20	25

Product Features

Feature 1: Wide selection of inner and outer diameters and thicknesses; T dimension specified type thickness can be specified in 0.5 mm increments.
Feature 2: High-precision products manufactured by cutting processes enable precise spatial adjustments.
Feature 3: Compared with standard washers, metal washers will not be dented after the connected part is screwed in due to the locking, and cause the bolts to loosen.
Feature 4: Compared with standard stamped washers, metal washers increase the friction with the mounting part, which can prevent loosening.

Usage Method

Example of use for securing the seat surface
■The bolt connection is stable.
How to Use Metal Wound Gaskets

Example of use for anti-loosening
■ By increasing the seat surface to increase friction, it is not prone to loosening.
Large Image of Metal Wound Gasket Product

Example of use for reinforcement of soft materials
■ Prevent the bolts from sinking in.
Large Image of Metal Wound Gasket Product

Example of use as spring washer
Metal Wound Fragment Specifications

Precautions

①Metal washer is a turned product, not a stamped part.
②When the relative humidity of the operating environment is high and certain anti-rust ability is required, please choose products with electroless nickel plating surface treatment or stainless steel SUS3 series materials.
(3) When the operating environment requires certain abrasion resistance and hardness for metal washers, please give priority to quenched products.

Example of Use

Application Industries

Smart phone	Electronic & Electrical Appliances	Lithium battery

Automotive	Robotics	Medical

Male thread type contour bolt	Linear bearing with flange Single liner standard	Shaft support Bracket type

Typical model: SMSB5.5	Typical model: LHFC8	Typical model: STHR12

Economy Metal Washer – T Dimension Specifiable, Standard / Precision Grade

Caution

Product Description