Washers · Flat Washers

Flat Washers for Clevis Pins

38 catalogued sizes, dimensioned to ISO 8738. Pick any row and the technical drawing redraws to it.

Flat Washers for Clevis Pins to ISO 8738 are catalogued in sizes M3 to M100, with id 3-100 mm, od 6-125 mm, thick 0.8-14 mm. 38 sizes are held in the table below, and the technical drawing redraws to whichever row you select.

Standard: ISO 8738
Size range: M3-M100
ID: 3-100 mm
OD: 6-125 mm
Catalogued sizes: 38

Dimensions are nominal values from the governing standard. Confirm the tolerance class for your application before ordering.

Materials & Grades

Select a material class to see the grades we supply it in. Each designation is listed with its ISO/EN, AISI/SAE, JIS and GB equivalents.

Stainless Steel38 Carbon Steel66 Alloy Steel41 Bearing Steel5 Spring Steel25 Aluminum and Aluminum Alloys21 Brass17 Bronze11 Copper8 Titanium and Titanium Alloys18 Nickel and Nickel Alloys22 Iron-Nickel and High-Temperature Alloys10 Tool Steel and Specialty Hardened Steel9 Structural and Construction Steel9

Stainless Steel

Austenitic Stainless Steel

A1 AISI 303 · SAE 303 · SUS303 · EN 1.4305 · X8CrNiS18-9
A2 AISI 304 · SAE 304 · SUS304 · EN 1.4301 · X5CrNi18-10 · 06Cr19Ni10
304L AISI 304L · SUS304L · EN 1.4307 · X2CrNi18-9 · 022Cr19Ni10
302 AISI 302 · SUS302 · EN 1.4310
305 AISI 305 · SUS305 · EN 1.4303
A4 AISI 316 · SAE 316 · SUS316 · EN 1.4401 · X5CrNiMo17-12-2 · 06Cr17Ni12Mo2
316L AISI 316L · SUS316L · EN 1.4404 · X2CrNiMo17-12-2 · 022Cr17Ni12Mo2
321 AISI 321 · SUS321 · EN 1.4541 · X6CrNiTi18-10
310 / 310S AISI 310 · AISI 310S · SUS310S · EN 1.4845
302HQ AISI 302HQ
A3
A5
347 AISI 347 · SUS347 · EN 1.4550 · X6CrNiNb18-10
309 / 309S AISI 309 · AISI 309S · SUS309S

Martensitic Stainless Steel

AISI 410 SUS410 · EN 1.4006 · X12Cr13 · 12Cr13
AISI 420 SUS420J1 · SUS420J2 · EN 1.4021 · EN 1.4028 · 20Cr13 · 30Cr13
AISI 431 SUS431 · EN 1.4057 · X17CrNi16-2
C1
C3
C4
AISI 440A
AISI 440B
AISI 440C SUS440C · EN 1.4125

Ferritic Stainless Steel

AISI 430 SUS430 · EN 1.4016 · X6Cr17 · 10Cr17
F1
AISI 434
AISI 444

Precipitation-Hardening Stainless Steel

17-4 PH AISI 630 · UNS S17400 · SUS630 · EN 1.4542 · X5CrNiCuNb16-4
15-5 PH UNS S15500
17-7 PH UNS S17700

Duplex and Super Duplex Stainless Steel

Duplex 2205 UNS S31803 · UNS S32205 · EN 1.4462
Super Duplex 2507 UNS S32750 · EN 1.4410
D2
D4
D6
D8
Lean Duplex 2101 UNS S32101
Super Duplex S32760 UNS S32760 · EN 1.4501

Carbon Steel

Low-Carbon Steel

SAE 1006
SAE 1008
SAE 1010
SAE 1018
SAE 1020
Q195
Q235
SAE 1012
SAE 1015
Q215
ML08
ML08Al
ML10
ML15
ML20
SWRCH6A
SWRCH8A
SWRCH10A
SWRCH12A
SWRCH15A
SWRCH18A

Medium-Carbon Steel

SAE 1035
SAE 1045
S45C
C45
SAE 1030
SAE 1040
SAE 1050
30
35
40
45
50
S35C
S40C
S50C
C35
C40

High-Carbon Steel

SAE 1060
SAE 1070
65Mn
SAE 1065
SAE 1075
SAE 1080
SAE 1085
SAE 1090
SAE 1095
60
65
70
75
80
85

Cold-Heading Steel

SWRCH22A
10B21
SWRCH22K
SWRCH25K
SWRCH30K
SWRCH35K
SWRCH40K
ML20Mn
ML25
ML30
ML35
ML40
15B25

Alloy Steel

Chromium Steel

40Cr
45Cr
AISI 5140
SAE 5140
AISI 5120
SAE 5120
SCr420
SCr440

Chromium-Molybdenum Steel

35CrMo
42CrMo
AISI 4140
SCM435
SCM440
42CrMo4
30CrMo
AISI 4130
SAE 4130
SAE 4140
AISI 4142
AISI 4145
SCM415
SCM420
SCM445
EN 1.7220
EN 1.7225
25CrMo4
34CrMo4

Nickel-Chromium-Molybdenum Steel

AISI 4340
SAE 4340
40CrNiMo
SNCM439
EN 1.6511
36CrNiMo4

Boron Alloy Steel

10B22
10B21
15B21
15B25
20MnTiB
20Mn2B
35VB
40MnB

Bearing Steel

GCr15
AISI 52100 SAE 52100 · UNS G52986
SUJ2
100Cr6 EN 1.3505
GCr15SiMn

Spring Steel

Carbon Spring Steel

SAE 1065
SAE 1070
SAE 1075
SAE 1080
SAE 1095
65
70
75
80
65Mn

Silicon-Manganese Spring Steel

60Si2Mn
60Si2MnA
SUP6
SUP7

Chromium-Vanadium Spring Steel

50CrVA
SAE 6150
AISI 6150
SUP10

Stainless Spring Steel

AISI 301
SUS301
EN 1.4310
AISI 302
AISI 304
AISI 316
17-7 PH

Aluminum and Aluminum Alloys

Commercially Pure Aluminum

1050
1060
1070
1100

2xxx Series Aluminum

2024
2011
2014
2017

5xxx Series Aluminum

5052
5083
5754

6xxx Series Aluminum

6061
6061-T6
6063
6082
6082-T6

7xxx Series Aluminum

7075
7075-T6
7005
7050
7075-T73

Brass

Free-Cutting Brass

C36000
H62
HPb59-1
C3601
C3602
C3604
CuZn36Pb3
CuZn39Pb3
EN CW614N
EN CW617N
H65

Lead-Free Brass

C69300
C27450
CW510L
CW511L

Naval Brass

C46400
CuZn39Sn1

Bronze

Silicon Bronze

C65500
C65100
C65600

Phosphor Bronze

C51000
C52100
CuSn6
CuSn8

Aluminum Bronze

C95400
C95500
C63000
CuAl10Ni5Fe4

Copper

C11000
T2
C10100
C10200
C12200
T1
TU1
TU2

Titanium and Titanium Alloys

Commercially Pure Titanium

Grade 2
Grade 1
Grade 3
Grade 4
TA1
TA2
TA3

Alpha-Beta Titanium Alloys

Grade 5
Ti-6Al-4V
TC4
UNS R56400

Low-Interstitial Grade

Grade 23
Ti-6Al-4V ELI
UNS R56407

Other Titanium Fastener Alloys

Ti-6Al-6V-2Sn
Ti-6Al-2Sn-4Zr-2Mo
Beta-C titanium
Ti-10V-2Fe-3Al

Nickel and Nickel Alloys

Commercially Pure Nickel

Nickel 200
UNS N02200
Nickel 201
UNS N02201

Inconel Alloys

Inconel 625 UNS N06625
Inconel 718 UNS N07718
Inconel 600 UNS N06600
Inconel 601 UNS N06601
Inconel 686 UNS N06686
Inconel X-750 UNS N07750

Monel Alloys

Monel 400 UNS N04400
Monel K-500 UNS N05500

Hastelloy Alloys

Hastelloy C-276 UNS N10276
Hastelloy C-22 UNS N06022
Hastelloy B-2 UNS N10665
Hastelloy B-3 UNS N10675
Hastelloy X UNS N06002

Other Nickel Alloys

Alloy 20 UNS N08020
Alloy 625
Alloy 718
Alloy 825 UNS N08825
Alloy 925 UNS N09925

Iron-Nickel and High-Temperature Alloys

A286

A-286
UNS S66286
EN 1.4980

Invar

Invar 36
Alloy 36
UNS K93600
FeNi36

Alloy 42

Alloy 42
UNS K94100
FeNi42

Tool Steel and Specialty Hardened Steel

AISI D2
AISI H13
SKD11
Cr12MoV
AISI O1
AISI A2
AISI S7
SKD61
9CrSi

Structural and Construction Steel

ASTM A36
Q235B
Q355B
S355JR
Q235C
Q355C
S235JR
S275JR
S355J2

Applications & Industries

Flat Washers for Clevis Pins are bought for a small number of well-defined jobs. These are the ones we ship them for. Stocked from M3 to M100 (nominal bolt size).

Industries that specify Flat Washers for Clevis Pins

Construction machinery pivot pins.
Hydraulic cylinders clevis and rod-end pins.
Agricultural linkages pins in tractor implements.
Lifting equipment shackle and link pins.
Rotating & vibrating plant Spring, tooth and wedge types that maintain or lock bolt tension.
Steel fabrication Spreading load under a head or nut and protecting the surface finish.

Typical applications

matching clevis pin diameters
spacing the cotter pin off the clevis face
preventing wear on the clevis bore edge
taking up axial play
maintaining bolt tension in a joint that settles
spreading clamp load over a soft or oversized bearing face

Service conditions to specify against

Marine and coastal: Available in A4 (316) stainless for chloride exposure — coastal structures, pool halls, water treatment and deck hardware, where A2 will eventually pit.
Hardness matters: Under a high-strength bolt a soft washer embeds into the joint and preload is lost — specify a hardened washer for structural bolting.

Where to use something else

Do not use a bolt washer on a clevis pin; its bore is sized for a thread, not the pin tolerance.

Full application guide: where Flat Washers for Clevis Pins are used, how to specify them, and the cases they are wrong for

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.

Dimensioned line drawing of M3 Flat Washers for Clevis Pins to ISO 8738. Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected.

Inner diameter d1 (mm): 3
Outer diameter d2 (mm): 6
Thickness h (mm): 0.8
h_max (mm): 0.84

Sends the selected values to the quote form below.

Request a Quotation for Flat Washers for Clevis Pins

The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.

Request a Quotation

Specification

Item / category Standard Size(s) Material / finish Quantity

Business Information

Company * Contact Name * Email * Phone (with country code) Country / Region

Notes

Dimensions & Specifications (ISO 8738)

Every row below is a starting point for the customizer above — pick any size and the drawing will redraw to that row.

Size	Inner diameter d1 (mm)	Outer diameter d2 (mm)	Thickness h (mm)	h_max (mm)	Reference standard
M3	3	6	0.8	0.84	ISO 8738
M4	4	8	0.8	0.84	ISO 8738
M5	5	10	0.8	0.84	ISO 8738
M6	6	12	1.6	1.68	ISO 8738
M7	7	14	1.6	1.68	ISO 8738
M8	8	16	2	2.1	ISO 8738
M10	10	20	2.5	2.625	ISO 8738
M12	12	25	3	3.15	ISO 8738
M13	13	25	3	3.15	ISO 8738
M14	14	28	3	3.15	ISO 8738
M16	16	28	3	3.15	ISO 8738
M18	18	30	4	4.2	ISO 8738
M20	20	32	4	4.2	ISO 8738
M22	22	34	4	4.2	ISO 8738
M23	23	36	4	4.2	ISO 8738
M24	24	38	4	4.2	ISO 8738
M25	25	40	4	4.2	ISO 8738
M26	26	40	5	5.25	ISO 8738
M27	27	40	5	5.25	ISO 8738
M28	28	42	5	5.25	ISO 8738
M30	30	45	5	5.25	ISO 8738
M32	32	50	5	5.25	ISO 8738
M33	33	50	5	5.25	ISO 8738
M35	35	52	6	6.3	ISO 8738
M36	36	52	6	6.3	ISO 8738
M40	40	58	6	6.3	ISO 8738
M45	45	62	7	7.35	ISO 8738
M50	50	68	8	8.4	ISO 8738
M55	55	75	9	9.45	ISO 8738
M60	60	80	9	9.45	ISO 8738
M65	65	90	9	9.45	ISO 8738
M70	70	95	10	10.5	ISO 8738
M75	75	100	10	10.5	ISO 8738
M80	80	110	12	12.6	ISO 8738
M85	85	110	12	12.6	ISO 8738
M90	90	115	12	12.6	ISO 8738
M95	95	120	12	12.6	ISO 8738
M100	100	125	14	14.7	ISO 8738

Flat Washers for Clevis Pins (ISO 8738) are a type of washers used across industrial assembly. Below is the complete size table together with material, standard and application guidance.

What Are Flat Washers for Clevis Pins?

Flat Washers for Clevis Pins are washers defined by ISO 8738. They are selected by nominal bolt size and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment.

Materials & Finishes

Common materials include carbon steel (typically zinc plated or hot-dip galvanized), hardened or case-hardened steel where wear matters, and stainless steel A2 (304) or A4 (316) for corrosion resistance. Specify the material, hardness where relevant, and the surface finish appropriate to your application and environment.

Specification Guides

Each size, material and standard of Flat Washers for Clevis Pins has its own reference page with the figures for that one configuration.

Goes With

Hardware commonly specified alongside Flat Washers for Clevis Pins.

Pricing

Flat Washers for Clevis Pins are supplied to order. Pricing starts from approximately US$0.020 per piece for standard sizes in carbon steel; final pricing depends on size, material, finish and order quantity (MOQ applies). Submit your exact configuration with the quote form above.

Custom manufacturing · Made to drawing

Need a flat washers for clevis pins outside the standard range?

Bore and outside diameter are set by the joint rather than by the bolt, which is why an off-table size is so often the right answer. Made by stamping or punching.

Minimum order from 2,000 pieces; samples within 7 days of drawing approval.

Custom washer manufacturing Send a drawing

Inside the plant

Manufactured in our own plant

This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.

01

Cold heading

Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail.

Head dimensions and under-head radius checked at set-up and per shift.
02

Thread rolling

Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch.

Go / no-go ring gauges to ISO 965 tolerance class 6g.
03

Heat treatment

Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it.

Core hardness and tensile tested per lot to ISO 898-1.
04

Surface treatment

Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list.

Coating thickness and neutral salt spray hours to ISO 9227.

Frequently Asked Questions

Which standard governs Flat Washers for Clevis Pins?

Flat Washers for Clevis Pins are manufactured to ISO 8738. The dimensional values on this page follow that standard.

What sizes are available for Flat Washers for Clevis Pins?

The table on this page lists 38 sizes for Flat Washers for Clevis Pins, ranging from M3 to M100. Sizes outside the table can be quoted on request.

In which materials are Flat Washers for Clevis Pins supplied?

Flat Washers for Clevis Pins are supplied in carbon steel (zinc plated / HDG) and stainless A2 / A4, with finishes including zinc plating, hot-dip galvanizing and black oxide. Choose material and finish to suit the load and the service environment for Flat Washers for Clevis Pins.

How do I request a quotation?

Use the parametric drawing on this page to set the exact configuration (size, material, finish) and click "Request this configuration" — a specialist from Engineering Hardware will respond within one business day.

Materials & Grades

Stainless Steel

Austenitic Stainless Steel

Martensitic Stainless Steel

Ferritic Stainless Steel

Precipitation-Hardening Stainless Steel

Duplex and Super Duplex Stainless Steel

Carbon Steel

Low-Carbon Steel

Medium-Carbon Steel

High-Carbon Steel

Cold-Heading Steel