Answering your search for dependable 7/8 inch bolts, this guide highlights top picks that suit demanding projects. The best fits vary by length, steel grade, and installation needs. This selection is ideal for builders, mechanics, and DIY enthusiasts who require strong, reliable hex cap screws. Explore each product to determine which is best for your application, whether you need shorter lengths for tight spaces or longer bolts for deeper threading.
| Product | Size | Length | Material |
|---|---|---|---|
| Hard-to-Find Fastener 014973381783 Grade 8 Hex Cap Screws 5#, 7/8-9 x 6 | 7/8-Inch | 6-Inch | Steel |
| Hard-to-Find Fastener 014973381721 Grade 8 Coarse Hex Cap Screws, 7/8-9 x 10-Inch | 7/8-Inch | 10-Inch | Steel |
| Hard-to-Find Fastener 014973381752 Grade 8 Hex Cap Screws 5#, 7/8-9 x 3 | 7/8-Inch | 3-Inch | Steel |
| Hard-to-Find Fastener 014973381776 Grade 8 Hex Cap Screws 5, 7/8-9 x 5 | 7/8-Inch | 5-Inches | Steel |
| Hard-to-Find Fastener Grade 8 Fine Hex Cap Screws (7/8-14 x 2) Bulk Pack | 7/8-Inch | 2-Inches | Steel |
Best For Critical Automotive Fastening
Product: Hard-to-Find Fastener 014973381783 Grade 8 Hex Cap Screws 5#, 7/8-9 x 6, Piece-5. This bolt is best for heavy-duty automotive or equipment assemblies requiring Grade 8 strength and a 7/8-inch diameter. Best for: engine mounts, chassis bolts, or high-stress connections where precise 7/8-9 threading is needed. Selection is justified by robust steel and a 6-inch length for secure engagement. Caution: verify thread pitch compatibility with mating parts before installation.
- Diameter: 7/8-Inch
- Length: 6-Inch
- Material: Steel
Best For Long-Duty Projects
Product: Hard-to-Find Fastener 014973381721 Grade 8 Coarse Hex Cap Screws, 7/8-9 x 10-Inch, 3-Piece. This option suits projects needing extended thread engagement and extra reach. Best for: machinery installations or structural bolting where long fasteners improve load distribution. Selection is supported by a 10-inch length and Grade 8 steel. Caution: longer bolts can protrude in tight spaces; confirm clearance before use.
- Diameter: 7/8-Inch
- Length: 10-Inch
- Material: Steel
Best For Compact Assemblies
Product: Hard-to-Find Fastener 014973381752 Grade 8 Hex Cap Screws 5#, 7/8-9 x 3, Piece-8. Suitable for compact assemblies that require strong fasteners without excessive length. Best for: small machinery housings, brackets, or lightweight frame connections where space is limited. Critically, the 3-inch length balances strength with a compact profile. Caution: ensure the 3-inch length is appropriate for the intended thread depth.
- Diameter: 7/8-Inch
- Length: 3-Inch
- Material: Steel
Best For Standard 5-Inch Applications
Product: Hard-to-Find Fastener 014973381776 Grade 8 Hex Cap Screws 5, 7/8-9 x 5, Piece-6, Yellow. This bolt is well-suited for general 5-inch applications that require reliable steel strength and visible yellow finishes for identification. Best for: construction frames or equipment that benefits from standard 5-inch engagement. Limitation: finish may wear in heavy-use environments; consider corrosion resistance for outdoor use.
- Diameter: 7/8 inch
- Length: 5 inches
- Material: steel
Best For Bulk Storage And Projects
Product: Hard-to-Find Fastener Grade 8 Fine Hex Cap Screws, Bulk Pack, Steel Hex Bolts for Construction, Home Improvement, 7/8-14 x 2, Pack of 5. Best for: bulk projects where identical fasteners are needed quickly, with finer threads for smoother tapping. This option is chosen for its 2-inch length and bulk packaging. Caution: check thread pitch compatibility with mating nuts and threaded inserts in bulk applications.
- Diameter: 7/8-Inch
- Length: 2-Inch
- Material: Steel
Buying Guide: Key Considerations For 7/8 Inch Bolts
- Strength grade matters: Grade 8 bolts offer high tensile strength suitable for heavy loads. Choose Grade 8 for critical structural or automotive applications.
- Thread pitch and compatibility: 7/8-9 and 7/8-14 indicate coarse and fine threads. Ensure mating nuts, taps, and holes match the pitch.
- Length suitability: Longer bolts provide deeper engagement but require clearance in the assembly. Shorter bolts reduce project size but may limit strength.
- Material and finish: Steel is common and strong; consider corrosion-resistant finishes for outdoor or humid environments.
- Budget vs. bulk needs: Bulk packs save time on repetitive projects but verify that the packing quantity aligns with your job size.
FAQ
- What does 7/8-9 mean on a bolt? It indicates a 7/8-inch diameter with a 9 threads-per-inch coarse pitch.
- When should I use Grade 8 vs. Grade 5? Grade 8 offers higher tensile strength and is preferable for high-stress applications.
- Are fine threads better than coarse threads? Fine threads offer smoother adjustment and greater pull-out resistance in some materials; choose based on application.
- Can I mix bolts of different lengths in one assembly? No, using varying lengths can create uneven load distribution and potential failure.
- Is it necessary to use washers with 7/8 inch bolts? Washers help distribute load and protect surfaces; use appropriate washer size and type.
- Should I coat bolts for outdoor use? Yes, consider coating or stainless options if exposure includes moisture or chemicals.