Pan Head Screws
| Standard | DIN 7985 · ISO 7045 · SAE J933 |
|---|---|
| Material | C1022 Steel |
| Strength Grade | 4.8 / 8.8 |
| Size Range | M2-M8 |
| Surface Treatment | Zinc Plated |
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Product Description
Product Description & Key Specifications
Pan head machine screws are threaded screws used with tapped holes, weld nuts, blind rivet nuts or hex nuts in panels, covers, brackets and equipment assemblies. This range uses C1022 steel with 4.8 / 8.8 grade options to DIN 7985, ISO 7045 and SAE J933 references.
Unlike self tapping screws, machine screws require a mating internal thread. Selection should confirm head diameter, drive recess, thread pitch, length, strength grade, coating and mating thread type. Pan head form is commonly chosen where a raised, neat bearing head is acceptable on the surface.
Zinc plated finish is used for general corrosion protection in automotive interiors, railway panels, equipment covers, electrical housings and light brackets. Common RFQs include M3, M4, M5, M6 and M8 screws with flat washers or blind rivet nuts.
| Product type | Pan head machine screws |
|---|---|
| Standards | DIN 7985 / ISO 7045 / SAE J933 |
| Material | C1022 steel |
| Strength grade | 4.8 / 8.8 |
| Size range | M2-M8 |
| Common models | M2 x 6, M3 x 8, M4 x 10, M5 x 12, M6 x 16, M8 x 20 |
| Drive and head | Pan head, cross recess or drawing-based drive |
| Surface finish | Zinc plated |
| Matched hardware | Flat washers, blind rivet nuts, weld nuts and hex nuts |
| Documentation | CoC, material certificate, dimensional and coating report on request |
Dimensions & SpecificationsDIN 7985 / ISO 7045
Technical Drawing
Dimensional Table
| Parameter | M1.6 | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 |
|---|---|---|---|---|---|---|---|---|---|---|
| P | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 |
| da/max | 2.1 | 2.6 | 3.1 | 3.6 | 4.1 | 4.7 | 5.7 | 6.8 | 9.2 | 11.2 |
| dk/max | 3.2 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 16 | 20 |
| dk/min | 2.9 | 3.7 | 4.7 | 5.7 | 6.64 | 7.64 | 9.64 | 11.57 | 15.57 | 19.48 |
| r/max | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.25 | 0.4 | 0.4 |
| No. | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 4 | 4 |
| M | 1.8 | 2.5 | 2.7 | 3.1 | 4.2 | 4.6 | 5.3 | 6.8 | 9 | 10.2 |
| t/min | 0.72 | 1.1 | 1.3 | 1.7 | 1.74 | 2.04 | 2.77 | 3.03 | 4.18 | 5.38 |
| t/max | 1.02 | 1.4 | 1.6 | 2 | 2.24 | 2.54 | 3.27 | 3.53 | 4.68 | 5.88 |
| h/max | 1.42 | 1.72 | 2.12 | 2.52 | 2.82 | 3.25 | 3.95 | 4.75 | 6.15 | 7.68 |
| h/min | 1.18 | 1.48 | 1.88 | 2.28 | 2.58 | 2.95 | 3.65 | 4.45 | 5.85 | 7.32 |
| k | 0.8 | 1.1 | 1.3 | 1.6 | 1.9 | 2 | 2.5 | 3 | 3.7 | 4.8 |
Engineering references
Technical resources
Review the applicable dimensions, drawing and standard relationship before confirming the ordered specification.02
Selection
Selection Advantages by Application
Automotive Interior and EV Panels
M3-M6 pan head screws are used in covers, trim brackets, electronics housings and EV accessory panels where a tapped or inserted thread is available.
Automotive and EV fastenersRailway Panels and Equipment Covers
Zinc plated DIN 7985 / ISO 7045 screws support railway interior covers, equipment panels and serviceable assemblies.
Railway fastenersIndustrial Enclosures and Instruments
Pan head machine screws are common for instrument housings, enclosures and small brackets paired with rivet nuts or tapped holes.
Industrial equipment fasteners03
Assembly
Recommended Matching Products
04
Manufacturing
Manufacturing & Quality Control
Manufacturing CapabilityQuality Control
Cold heading and thread rolling for small machine screwsC1022 material and wire diameter verification
Pan head and drive forming to DIN / ISO / SAE referenceHead diameter, height, recess fit and thread gauge inspection
Heat treatment for 8.8 grade where specifiedHardness and tensile reference checks by lot
Zinc plating for general corrosion protectionCoating thickness and appearance inspection
Bulk, carton or assembly line packagingCoC, dimensional and coating reports prepared on request
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FAQ
Common Questions Before RFQ
Are pan head screws self tapping?
No. These are machine screws and need a tapped hole, nut, weld nut or blind rivet nut. Use self tapping screws where the screw forms the mating thread.
What sizes are available?
Common sizes are M2-M8 with project-specific lengths.
What finish is available?
Zinc plated finish is available for general corrosion protection.
Can washers or rivet nuts be supplied?
Yes. Pan head screws can be supplied with flat washers, rivet nuts, weld nuts or hex nuts.
What RFQ details are needed?
Send standard, size, length, drive, grade, coating, quantity and mating thread requirement.
Need pan head machine screws for panels or equipment?
Send size, length, drive type, grade, coating, quantity and mating nut or insert requirement. We can quote DIN 7985 / ISO 7045 zinc plated pan head screws.
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