Description
Overview:
The JAP Stud (1 1/4 in x 5/16 in) 7708 is a genuine steel fastener for vintage JAP industrial engines. It is a double-ended stud used to clamp components securely where a 5/16 in (7.94 mm) stud is specified. The overall length is 1 1/4 in (31.75 mm), matching original factory dimensions for a precise fit. Built to OEM standards and supplied as OEM No. 8470, it helps maintain correct clamping load under heat and vibration, protecting threads in the parent casting. Ideal for restoration and maintenance of engines such as the JAP 3 and JAP 4f, this is unused old stock and may show age-related tarnish but remains fully serviceable. Genuine JAP part, reference 7708, suitable for workshop or field repairs on industrial and horticultural machinery using JAP power units.
Key Features:
- Genuine JAP part for assured compatibility and fit
- OEM No. 8470 for accurate replacement of original hardware
- Dimensions: 1 1/4 in x 5/16 in (31.75 mm x 7.94 mm) for correct sizing
- Double-ended stud design for reliable clamping and easy assembly
- Steel construction for strength in high-vibration, high-temperature engine areas
- Helps preserve casting threads by using nuts on both ends
- Matches original length to maintain correct torque and stack height
- Suitable for restoration of vintage JAP industrial engines
- Clean, sharply formed threads for straightforward fitting
- Supplied as unused old stock; may show cosmetic tarnish only
Typical Applications:
Commonly used to mount cylinder heads, manifolds, covers, brackets, guards, and other engine accessories on JAP industrial engines that specify a 5/16 in stud. Suitable for refurbishing stationary plant, cement mixers, agricultural and garden machinery, and small industrial power units where JAP engines were fitted, ensuring secure, vibration-resistant joints and consistent service performance.
Also known as:
JAP engine stud, double-ended stud, 5/16 in engine stud, 1 1/4 in stud, cylinder head/manifold stud, vintage JAP fastener, OEM 8470 stud, reference 7708 stud.
Fits Models:
JAP 2, JAP 2a, JAP 2s, JAP 3, JAP 4, JAP 4f, JAP 4/3, JAP 5, JAP 6
Product Specifications
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
