Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 8 mm Tip Size, 2 23/32 in Overall Lg - Hex Bit Sockets
PROTOHex Bit Sockets

PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 8 mm Tip Size, 2 23/32 in Overall Lg

The PROTO J4990-8M-TT is a hex bit socket with a 3/8 in drive size and a fixed insert design. It features an 8 mm hex tip and a 2 23/32 in overall length. This PROTO-branded tool is categorized as a hex bit socket.

SKU 3G-OTH-305589

Brand
PROTO
Item
Socket Bit: 3/8 in Drive Size, Hex Tip, 8 mm Tip Size, 2 23/32 in Overall Lg
Category
Hex Bit Sockets
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

PROTO
Manufacturer Part Number
J4990-8M-TT
Type
Hex Tip, Fixed Insert
Overall Lg
2 23/32 in
Tip Size
8 mm
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO J4990-8M-TT is a hex bit socket with a 3/8 in drive size and a fixed insert design. It features an 8 mm hex tip and a 2 23/32 in overall length. This PROTO-branded tool is categorized as a hex bit socket.

Used in

Common applications for PROTO
Automotive assembly — PROTO J72102 impact socket set for fastening lug nuts on production lines
Heavy equipment maintenance — PROTO J3772T flare nut wrench for hydraulic line fittings on excavators
General industrial repair — PROTO J795SA adjustable wrench set for tightening bolts on conveyor systems
Aerospace manufacturing — PROTO J5240A slotted bit socket for adjusting fasteners in confined spaces
Oil and gas pipeline work — PROTO J5438 12-point socket for valve assembly in refineries
Construction site toolkits — PROTO J8179-T500 double box wrench for structural steel bolting

PROTO Products

3G Electric supplies PROTO hex bit sockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 6 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-6M-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 6 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-6M-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 9 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-9M-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 9 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-9M-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 10 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-10M-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 10 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-10M-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 7/32 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49907/32-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 7/32 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49907/32-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-5M-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 5 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-5M-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 3/8 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49903/8-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 3/8 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49903/8-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.

More from PROTO

View all PROTO parts →
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 1/8 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49901/8). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 1/8 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49901/8). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 1/4 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49901/4-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 1/4 in Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J49901/4-TT). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 1/2 in Drive Size, Hex Tip, 12 mm Tip Size, 2 3/4 in Overall Lg, Fixed Insert (MPN J5441R-12M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 1/2 in Drive Size, Hex Tip, 12 mm Tip Size, 2 3/4 in Overall Lg, Fixed Insert (MPN J5441R-12M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 1/4 in Drive Size, Hex Tip, 5/64 in Tip Size, 1 7/8 in Overall Lg, Fixed Insert (MPN J47705/64). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 1/4 in Drive Size, Hex Tip, 5/64 in Tip Size, 1 7/8 in Overall Lg, Fixed Insert (MPN J47705/64). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 4 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-4M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 4 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-4M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 1/2 in Drive Size, Hex Tip, 1/4 in Tip Size, 4 5/8 in Overall Lg, Fixed Insert (MPN J54411/4XL). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 1/2 in Drive Size, Hex Tip, 1/4 in Tip Size, 4 5/8 in Overall Lg, Fixed Insert (MPN J54411/4XL). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 8 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-8M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 8 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-8M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 9 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-9M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.
PROTO
PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 9 mm Tip Size, 2 23/32 in Overall Lg, Fixed Insert (MPN J4990-9M). Key specifications — attr1204765: Fixed Insert; attr1204767: PROTO.