5/16 SS Pan Head Machine Screw (INCH)
ASME B18.6.3 5/16" stainless steel pan head screws in A2 (304) grade with cross-recessed drive. Inch-dimensioned for US-specification equipment at 5/16-inch diameter.
Specification
#
Standard
ANSI/ASME B18.6.3
Thread
Coarse (standard)
Material
Stainless Steel 304 (A2)
Grade
A2-70
Stock
In stock (304). Grade 316 available against bulk order
Head Type
Pan head
Drive Type
Phillips cross-recessed
Thread Class
Class 2A per ASME B1.1
Finish
Plain/Passivated (stainless steel)
Dimension
#
Size (inch)
Thread Dia (min-max inch)
Pitch (TPI)
Length (inch)
Thread Length (inch)
#6
0.138-0.138
32
0.50
0.50
#8
0.164-0.164
32
0.625
0.625
#10
0.190-0.190
24
0.75
0.75
1/4"
0.250-0.250
20
1.00
1.00
5/16"
0.3125-0.3125
18
1.25
1.25
- All dimensions in inches, tolerance +/- 0.001 inch. Additional dimensions available on request.
Benefits
#
The 5/16-inch stainless steel pan head machine screw addresses fastening in imperial-dimensioned assemblies where metric fasteners are not interchangeable. A2-70 grade provides 700 MPa tensile strength with inherent corrosion protection. The cylindrical head profile allows installation where countersinking is impractical. Phillips drive compatibility ensures installation with standard hand and powered drivers.
Common Applications
#
5/16" SS pan head machine screws (inch) are specified for US-spec corrosion-resistant fastening:
- US-spec machinery assembly
- Marine equipment mounting (inch)
- Automotive components (inch)
- Food processing equipment (inch)
- HVAC system connections (inch)
Read Me
| Standard | ANSI/ASME B18.6.3 |
| Thread | Coarse (standard) |
| Material | Stainless Steel 304 (A2) |
| Grade | A2-70 |
| Stock | In stock (304). Grade 316 available against bulk order |
| Head Type | Pan head |
| Drive Type | Phillips cross-recessed |
| Thread Class | Class 2A per ASME B1.1 |
| Finish | Plain/Passivated (stainless steel) |
| Size (inch) | Thread Dia (min-max inch) | Pitch (TPI) | Length (inch) | Thread Length (inch) |
|---|---|---|---|---|
| #6 | 0.138-0.138 | 32 | 0.50 | 0.50 |
| #8 | 0.164-0.164 | 32 | 0.625 | 0.625 |
| #10 | 0.190-0.190 | 24 | 0.75 | 0.75 |
| 1/4" | 0.250-0.250 | 20 | 1.00 | 1.00 |
| 5/16" | 0.3125-0.3125 | 18 | 1.25 | 1.25 |
