3/8 SS Countersunk Machine Screw (INCH)
3/8" stainless steel flat-head machine screws to ASME B18.6.3 with 82° countersunk head in A2-70 grade. Flush installation in inch-specification assemblies at 3/8-inch.
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
Dimension
#
Size (inch)
Thread Dia (min-max inch)
Pitch (TPI)
Length (inch)
Thread Length (inch)
#6
0.138-0.1380
32
1/4-1 1/2
Full thread
#10
0.190-0.1900
24
3/8-2
Full thread
1/4"
0.250-0.2500
20
1/2-3
Full thread
5/16"
0.3125-0.3125
18
5/8-3
Full thread
3/8"
0.375-0.3750
16
3/4-4
Full thread
- All dimensions in inches, tolerance +/- 0.001 inch. Additional dimensions available on request.
Benefits
#
At 3/8-inch, inch-series stainless steel countersunk screws enable flush surfaces in US-specification equipment exposed to corrosive environments. The conical head provides self-centering in the countersunk hole. A2 stainless steel construction is appropriate for marine, food processing, and architectural applications where inch-dimensioned fasteners are specified.
Common Applications
#
Typical applications for 3/8-inch inch-series SS countersunk machine screws:
- Aerospace structural panels (inch spec)
- Industrial equipment flush covers
- Marine hull fittings (inch)
- Architectural metalwork (inch spec)
- Heavy machinery guard panels
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 |
| Size (inch) | Thread Dia (min-max inch) | Pitch (TPI) | Length (inch) | Thread Length (inch) |
|---|---|---|---|---|
| #6 | 0.138-0.1380 | 32 | 1/4-1 1/2 | Full thread |
| #10 | 0.190-0.1900 | 24 | 3/8-2 | Full thread |
| 1/4" | 0.250-0.2500 | 20 | 1/2-3 | Full thread |
| 5/16" | 0.3125-0.3125 | 18 | 5/8-3 | Full thread |
| 3/8" | 0.375-0.3750 | 16 | 3/4-4 | Full thread |
