M8 Wing Nut are manufactured to GB/T 62 / DIN 315. This page lists the controlling dimensions for the M8 size together with the installation notes for this type.
M8 Dimensional Row (GB/T 62 / DIN 315)
Size
Pitch (mm)
Wing width A (mm)
Wing height h (mm)
Nut height m (mm)
Reference standard
M8
1.25
32
18
13
GB/T 62 / DIN 315
Common Applications for M8 Wing Nut — GB/T 62 / DIN 315 (Series 077)
M8 Wing Nut — GB/T 62 / DIN 315 (Series 077) are commonly specified for general-purpose joints in machinery, fixturing and equipment frames.
Mating Parts for M8
Pair M8 with the matching M8 bolt or screw, plus a M8 flat washer where required to distribute load on softer materials.
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.
Sends the selected values to the quote form below.
Request a Quote
The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.
Dimensions & Specifications (GB/T 62 / DIN 315)
Size
Pitch (mm)
Wing width A (mm)
Wing height h (mm)
Nut height m (mm)
Reference standard
M3
0.5
12
8
5
GB/T 62 / DIN 315
M4
0.7
16
10
7
GB/T 62 / DIN 315
M5
0.8
20
12
8
GB/T 62 / DIN 315
M6
1.0
24
14
10
GB/T 62 / DIN 315
M8
1.25
32
18
13
GB/T 62 / DIN 315
M10
1.5
40
22
16
GB/T 62 / DIN 315
M12
1.75
48
26
19
GB/T 62 / DIN 315
M16
2.0
60
32
24
GB/T 62 / DIN 315
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.
Third-party video, selected automatically for this topic. It is not produced by Engineering Hardware and is not a specification source — use the tables on this page for dimensional data.
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
What is the coarse-thread pitch of M8 for Wing Nut — GB/T 62 / DIN 315 (Series 077)?
For M8 the standard coarse pitch is 1.25 mm — this is the value used for Wing Nut — GB/T 62 / DIN 315 (Series 077).
What clearance and tapping drill suit M8?
Use a 9 mm clearance hole (ISO 273 medium) for through-fixing, or a 6.8 mm tapping drill for a coarse M8 thread.
What is the height of an M8 nut?
The nominal height of a style-1 ISO 4032 M8 nut is in the spec table on this page. Style-2 (thick) is approximately 1.1× this height; thin (ISO 4035 / DIN 439) is approximately 0.5×.
How do I request a quotation?
Use the technical drawing on this page to pick the exact configuration, then submit it with the quote form. We respond within one business day.
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