Best Nut and Bolt Assortment Kits for DIY and Professional Projects
Whether you’re a weekend DIYer or a professional technician, a well-chosen nut-and-bolt assortment can save time and prevent project delays. The kits below offer a mix of metric and SAE fasteners, carbon steel and stainless options, and organized storage to keep parts from mixing. Each kit includes bolts, nuts, and washers with varying lengths and threads to handle furniture assembly, automotive repairs, electronics projects, and general maintenance. The five selections balance quantity, quality, and practicality, helping you pick a kit that fits your toolbox and job size.
| Product | Brand | Pieces | Sizes Included | Notable Feature |
|---|---|---|---|---|
| Bonost 1380Pcs Nuts And Bolts Assortment Kit | Bonost | 1380 | Metric M4–M8, 12–30mm | Grade 8.8, yellow zinc coating |
| Besitu 252Pcs Hex Bolts And Nuts Assortment Kit | Besitu | 252 | 1/4″, 5/16″, 3/8″ series | 304 stainless steel, fully threaded |
| Jackson Palmer 2251 Piece Hardware Kit | Jackson Palmer | 2251 | 62 sizes (SAE + Metric) | Interlocking lid; no-mix dividers |
| Wugongshan 1080 Pcs Hardware Assortment Kit | Wugongshan | 1080 | M3–M6 | Cross slotted round head set |
| Bonost 3010pcs Hardware Assortment Kit | Bonost | 3010 | SAE & Metric, multi-tray | 4 trays; Phillips head & hex bolts |
Bonost 1380Pcs Nuts And Bolts Assortment Kit
Bonost packages a broad 1380-piece assortment designed to cover common needs in one purchase. The kit includes 345 metric hex bolts spread across 19 sizes (M4, M5, M6, M8) with lengths from 12mm to 30mm, plus 345 metric nuts in four sizes and 690 lock washers in eight sizes. Built from premium carbon steel, these grade 8.8 fasteners are corrosion resistant and coated with zinc for superior rust protection and a longer service life. All pieces sit in a sturdy, stackable plastic case with a built-in fastener guide, helping users locate the exact size quickly. This makes it suitable for cabinetry, light industrial work, and general repairs where a wide range is advantageous.
Besitu 252Pcs Hex Bolts And Nuts Assortment Kit
Besitu’s kit focuses on stainless steel durability and practical sizing. It includes 252 pieces in 10 common sizes, featuring 1/4″-20 x 3/4″, 1/4″-20 x 1-1/2″, 1/4″-20 x 2″, 5/16″-18 x 3/4″, 5/16″-18 x 1″, 5/16″-18 x 1-1/2″, 5/16″-18 x 2″, 3/8″-16 x 2-1/2″, 3/8″-16 x 1-1/2″, and more. The hex bolts and nuts are crafted from stainless steel 304 and fully threaded to provide strong, corrosion-resistant performance in general-use tasks, including environments below the water line. A sturdy storage box with inner and outer size charts helps users quickly identify the right fastener, offering a time- and money-saving approach over purchasing individual pieces. Ideal for repairs, cabinetry, and automotive maintenance.
Jackson Palmer 2251 Piece Hardware Kit
Jackson Palmer’s 2,251-piece assortment spans 62 sizes, combining screws, bolts, nuts, and washers to cover woodworking, household repairs, and light automotive tasks. The kit includes 19 screw sizes and 665 screws across SAE components, plus 720 pieces of bolts, nuts, and washers in SAE format, and 21 metric sizes with 865 pieces. It uses grade 2 nuts and bolts and features 6-Nib plus Type 17 point heat-treated screws for reliability. A key benefit is the interlocking lid and removable, reconfigurable dividers that prevent parts from mixing, supporting organized storage for frequent, varied projects.
Wugongshan 1080 Pcs Hardware Assortment Kit
Wugongshan’s kit assembles roughly 1080 pieces of metric fasteners (M3–M6) including cross-slotted round-head screws, nuts, and flat washers. The metal parts offer decent corrosion resistance and durability for varied conditions, while the smooth, accurate threads resist deformation during use. A grid-style plastic storage box keeps all components organized, easy to carry, and quick to replace when items are missing. This assortment is well-suited for furniture assembly, electronics projects, hobby machining, and light industrial tasks where common, reliable fasteners are needed and easy access matters.
Bonost 3010pcs Hardware Assortment Kit
Bonost’s 3010-piece kit covers both SAE and metric needs with Phillips head bolts and hex bolts, plus matching nuts and lock washers across four trays. The set includes 755 SAE Phillips head bolts, 875 metric Phillips head bolts, and 1380 metric hex bolts across 19 sizes, along with corresponding nuts and washers. Constructed from premium carbon steel with zinc coatings for corrosion resistance, these fasteners are suitable for automotive, machinery, and general repair uses. The sturdy, stackable case includes a fastener guide to prevent mixing and facilitate quick access, making it a practical, all-around solution for busy toolboxes.
Buying Guide
When choosing a nut-and-bolt assortment, consider several factors that influence performance, longevity, and value:
- Material and finish: Carbon steel with zinc plating offers strong, cost-effective performance but can rust if coatings wear away. Stainless steel (like 304) provides superior corrosion resistance, especially in damp or outdoor environments. For high-stress or outdoor use, prioritize stainless or coated alloys.
- Strength and grade: Grade 8.8 fasteners deliver higher tensile strength than standard grade 5 or grade 2 hardware, making them better suited for load-bearing or high-stress tasks. Check the product listing for the exact grade and ensure it matches your project requirements.
- Size range and threading: A broad mix of metric and SAE sizes, with full-thread versus partial-thread bolts, increases compatibility with a wider set of projects. Fully threaded bolts provide even grip along their length, while partial-thread bolts are better for clamping applications.
- Storage and organization: Look for sturdy, stackable cases with clearly labeled compartments or “no-mix” designs. A built-in fastener guide or labeled drawers helps you quickly locate the right piece, saving time during repairs and installations.
- Included components: Some kits emphasize high quantity of bolts only, while others balance bolts, nuts, washers, and even screws. Consider your typical tasks—furniture assembly, automotive work, electronics, or general maintenance—to determine the right mix.
- Durability and use-case alignment: If you work around moisture, choose rust-resistant materials. For light indoor projects, standard carbon steel with zinc coating is usually sufficient. For outdoor or humid environments, stainless steel offers better longevity.
- Your toolbox needs: Larger kits with multiple trays can be advantageous for lifetime projects and professional use, but they may take more space. Smaller, well-curated sets are convenient for quick fixes and small repairs.
Overall, the best choice depends on your typical projects, environmental exposure, and how often you need a quick, reliable fastener. The five kits highlighted here provide a range of options—from compact, stainless collections ideal for cabinetry and indoors to expansive, multi-tray assortments suitable for automotive and workshop use. Evaluate the material, size range, and storage features to select the kit that best fits your needs and keeps your projects moving forward.