Best Screw & Bolt Assortment Sets (2026 Guide)
We selected items with high overall ratings and substantial review volume that together offer diverse size ranges, materials, and organizer features relevant to typical users
The Verdict
- Best Overall: Kadrick metric flange bolt set 700Pcs M6-M10 — Best for flange applications: broad M6–M10 metric flange bolt assortment with matching nuts and washers for hardware projects
- Best Value: Machine Screws Assortment Kit with hex socket bolts — Best for machine screws: hex-socket and machine screw assortment tailored to precision assemblies and electronics work
This roundup identifies top-rated screw and bolt assortment sets for DIYers, shops, and light industrial use, comparing metric and SAE mixes, materials, and included hardware. Picks were chosen by compiling high-rating products with substantial review volume and variety across sizes, grades, and organizer styles to represent practical options
Top Picks
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1
Best Overall Kadrick metric flange bolt set 700Pcs M6-M10
Best for flange applications: broad M6–M10 metric flange bolt assortment with matching nuts and washers for hardware projects
Comprehensive set of flange bolts, nuts, and washers totaling 700 pieces in metric sizes. Includes 175 bolts, 175 nuts, and 175 washers per size group, with black zinc plating for durability. Customers note good quality and handy case, with some mixed feedback on quantity
- comprehensive 700-piece set
- metric M6-M10 range
- case for organization
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2
2300-piece hardware assortment kit with SAE & metric fasteners
Best mixed kit: large 2300-piece SAE and metric assortment that covers a wide variety of household and workshop repair needs
Comprehensive hardware kit with SAE and metric fasteners, nuts, bolts, and washers in a compact 3-tray set. Customers value its variety and ease of storage for DIY repairs
- SAE and metric coverage
- extensive assortment in 3 trays
- quality and variety cited by customers
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3
Best Value Machine Screws Assortment Kit with hex socket bolts
Best for machine screws: hex-socket and machine screw assortment tailored to precision assemblies and electronics work
Screws assortment including SAE & metric sizes with hex socket button head. Useful for multiple builds and drone motors, offering good variety and value
- mixed metric and SAE sizes
- high-strength 10.9 steel
- comprehensive hex socket bolt kit
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4
Holster making kit: screws & spacers (130pc) for kydex/knife sheaths
Best for holster makers: compact kit with screws and spacers sized for Kydex and sheath assembly tasks
Holster making kit with assorted screws and spacers for kydex and leather holsters. Includes 130 pieces with organized packaging, offering variety in sizes. Customer insight notes useful for knife sheath projects and neat organization
- 130 pcs total
- screw & spacer assortment
- black oxide coated steel
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5
M6-M12 metric bolts and nuts set with washers
Best for larger metric fasteners: M6–M12 selection with nuts and washers suitable for heavier-duty fastening needs
Metric bolts and nuts assortment with M6 to M12 threads and washers. Includes variety of lengths and a universal socket tool for quick fittings. Customers note high quality and good value for a range of projects
- wide size range
- quality construction
- includes necessary hardware
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6
Mywish metric bolt assortment kit (M4–M8) with nuts and washers
Best mid-range metric set: M4–M8 bolt assortment with accompanying nuts and washers for everyday repairs
Metric bolt assortment kit with bolts, nuts, and washers in sizes M4–M8. Includes varied threads and stainless steel construction for durability; users note its usefulness for 3D printing projects and value for money
- variety of metric sizes
- nuts and washers included
- durable metal construction
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7
YEEZET stainless steel bolt & nut kit, 245 pcs, M6/M8/M10
Best stainless option: stainless steel M6/M8/M10 bolt and nut kit built for corrosion resistance in outdoor or marine use
Stainless steel 304 heavy duty flanged bolts and nuts kit with 245 pieces in common sizes. Durable, corrosion resistant and suitable for engine-related projects. Customers note good quality and solid value
- 304 stainless steel for durability
- heavy duty flanged design
- includes 245 pieces in common sizes
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8
268Pcs Metric Bolt Assortment Kit with Nuts and Washers
bolt kit: compact 268-piece metric set that includes nuts and washers for common household projects
A 268-piece flange hex bolt, nut, and washer set in M5/M6/M8 with yellow zinc plating. Durable alloy steel construction for outdoor use and DIY projects. Customer insight notes varied specifications to fit diverse needs
- 268-piece kit
- grade 8.8 alloy bolts
- M5/M6/M8 assortment
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9
Grade 8.8 bolt and nut kit (940pcs) M4-M8 hex bolts nuts
Best for strength: grade 8.8 M4–M8 hex bolt and nut kit designed for higher-torque mechanical applications
Metric bolt and nut kit with 940 pieces in 18 sizes. Includes M4-M8 hex bolts and corresponding nuts for various projects. Customers note good quality and value for money
- includes 18 practical sizes
- heavy duty metric bolts and nuts
- yellow zinc plated finish
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10
Metric bolt assortment: M6/M8/M10/M12, 175 sets, grade 8.8
Best grade-certified assortment: metric M6–M12 grade 8.8 sets provided in organized sets for consistent mechanical performance
Metric bolt and nut kit with 175 sets in 4 sizes, grade 8.8 alloy steel with yellow zinc coating for corrosion resistance. Includes lock and flat washers for reliability and durability
- grade 8.8 alloy steel
- yellow zinc coating
- includes washers