machine-screws-nuts-washers-universal

Important Note

This entire repo was AI created - including all of the data within. The intent was to A) help me with my personal electronics inventory; and B) see how I could use AI to make that process a bit easier. DO NOT TRUST!

Machine Screws, Nuts, Washers & Construction Fasteners - Universal Inventory

Overview

This universal inventory page consolidates all fastening hardware across Cabinet-5, including machine screws, nuts, washers, wood screws, and construction fasteners. The collection spans multiple thread sizes (M2.5, M3, M4, M5) and various head types, providing comprehensive fastening solutions for electronics, mechanical assemblies, computer hardware, and construction applications.

Machine Screws & Hardware Inventory by Location

Bin 49 - M3 Hex Head Screws & Nuts (Various Lengths)

• Contents: M3 hex socket cap screws and nuts, 304 stainless steel
• Lengths: Various (typically 6-50mm+)
• Material: 304 stainless steel
• Quantity: Various assortment
• Applications: General assembly, electronics, mechanical projects

Bin 50 - M3 Hex Head Screws & Nuts (Long Lengths)

• Contents: M3 hex socket cap screws and nuts
• Lengths: 20-30mm (extended reach)
• Material: Steel/stainless steel
• Quantity: Various
• Applications: Deep assemblies, thick materials, extended reach

Bin 51 - Computer Hardware Screws & Standoffs (400 pieces)

• Contents: Complete computer hardware fastener kit
• Sizes: 6-32, M3, M2, various computer-specific sizes
• Organization: 10 sections with motherboard standoffs, HDD/SSD screws, fan screws
• Quantity: 400 pieces total
• Applications: PC building, motherboard mounting, storage devices

Bin 52 - M4 Hex Head Screws & Nuts (8-20mm)

• Contents: M4 hex socket cap screws and nuts
• Lengths: 8-20mm
• Material: Steel construction
• Quantity: Various
• Applications: Heavy-duty fastening, structural applications

Bin 54 - M3 Motherboard Standoffs Kit (320 pieces)

• Contents: Complete M3 motherboard hardware kit
• Components: Brass standoffs, M3 screws (6-20mm), hex nuts
• Organization: 6 sections
• Quantity: 320 pieces total
• Applications: Motherboard mounting, circuit boards, DIY computer builds

Bin 55 - M2.5 Brass Spacer Standoff Kit (160 pieces)

• Contents: M2.5 brass standoffs with stainless steel screws and nuts
• Components: Hex male-female brass standoffs, Phillips screws, hex nuts
• Material: Brass standoffs, 304 stainless steel screws/nuts
• Quantity: 160 pieces total
• Applications: Small electronics, precision assemblies, miniature projects

Bin 56 - Mixed Hardware Components

Section B - M3 Small Washers (40+ pieces)

• Type: M3 washers for load distribution
• Size: 3.2mm inner diameter, ~7mm outer diameter
• Material: Steel or zinc-plated steel
• Applications: Surface protection, load distribution

Section D - Square M2.5 Slot Nuts (50+ pieces)

• Type: Square M2.5 nuts for slot mounting
• Thread: M2.5 x 0.45mm pitch
• Design: Square profile prevents rotation in slots
• Applications: Small T-slot systems, precision equipment

Bin 57 - M3 Hex Head Screws (5-15mm)

• Contents: M3 hex socket cap screws
• Lengths: 5-15mm (short to medium)
• Material: Steel or stainless steel
• Quantity: Various
• Applications: Electronics assembly, compact assemblies, circuit boards

Bin 58 - M2.5 Machine Hardware & Washers

Section A - M2.5 Washers (100+ pieces)

• Type: M2.5 washers for load distribution
• Size: 2.7mm inner diameter, ~6mm outer diameter
• Material: Steel or zinc-plated steel
• Applications: Surface protection, load distribution for M2.5 fasteners

Section E - M2.5 Button Head & Hex Head Machine Screws 25mm (40+ pieces)

• Contents: M2.5 x 25mm button head and hex socket cap screws
• Head Types: Button head (rounded) and hex socket cap head
• Length: 25mm (extended length for M2.5)
• Material: Steel or stainless steel
• Applications: Deep M2.5 assemblies, extended reach precision work

Bin 59 - M5 Hex Head Screws (12mm)

• Contents: M5 hex socket cap screws
• Length: 12mm
• Material: Steel (black finish)
• Quantity: 50+ pieces
• Applications: Heavy-duty fastening, structural applications, larger assemblies

Bin 61 - M5 Button Head Machine Screws

Section B - M5 Button Head Screws 8-10mm (50+ pieces)

• Contents: M5 button head machine screws
• Head Type: Button head (rounded, low profile)
• Lengths: 8-10mm (short to medium for M5)
• Material: Steel or stainless steel
• Thread: M5 x 0.8mm pitch
• Applications: Heavy-duty assemblies, structural applications, compact M5 fastening

Bin 64 - M2.5 Hex Head & Button Head Screws & Nuts (5-25mm)

• Contents: M2.5 hex socket cap screws, button head screws, and hex nuts
• Head Types: Hex socket cap head, button head (low profile)
• Lengths: 5-25mm (comprehensive range)
• Material: Steel or stainless steel
• Quantity: Various assortment
• Applications: Small electronics, precision assemblies, miniature mechanical projects

Wood/Construction Screws Inventory by Location

Bin 58 - #6 Phillips Wood/Construction Screws

Section B - #6 3/4” Phillips Flat Head Screws (30+ pieces)

• Contents: #6 x 3/4” Phillips flat head screws (wood/sheet metal screws)
• Head Type: Phillips flat head (countersunk)
• Length: 3/4” (19mm)
• Material: Steel construction
• Applications: Wood assembly, sheet metal, general construction

Section D - #6 3/4” Phillips Button Head Screws (30+ pieces)

• Contents: #6 x 3/4” Phillips button head screws (wood/sheet metal screws)
• Head Type: Phillips button head (rounded, low profile)
• Length: 3/4” (19mm)
• Material: Steel construction
• Applications: Wood assembly where flush mounting not required, decorative applications

Section F - #6 1” Phillips Button Head Screws (30+ pieces)

• Contents: #6 x 1” Phillips button head screws (wood/sheet metal screws)
• Head Type: Phillips button head (rounded, low profile)
• Length: 1” (25mm)
• Material: Steel construction
• Applications: Thicker wood assembly, extended reach construction applications

Bin 61 - 3mm Self-Tapping Plastic Screws

Section A - 3mm Phillips Button Head Self-Tapping Screws (50+ pieces)

• Contents: 3mm diameter Phillips button head self-tapping screws
• Head Type: Phillips button head (rounded, low profile)
• Diameter: 3mm (similar to M3 but self-tapping thread)
• Lengths: 12-20mm range
• Material: Plastic construction
• Thread Type: Self-tapping for plastic materials
• Applications: Plastic assembly, electronics enclosures, non-metallic assemblies

Bin 63 - #8 Phillips Wood/Construction Screws

• Contents: #8 Phillips button head and flat head screws (wood/sheet metal screws)
• Head Types: Phillips button head (rounded) and flat head (countersunk)
• Lengths: 3/4” to 1.5” (19-38mm range)
• Material: Steel construction
• Thread Type: Self-tapping for wood, sheet metal, and general construction
• Applications: Heavy-duty wood assembly, thick materials, structural construction

Thread Specifications

M2.5 Threading

• Nominal Diameter: 2.5mm
• Thread Pitch: 0.45mm
• Hex Key Size: 2mm (for cap screws)
• Nut Size: 5mm across flats
• Applications: Small electronics, precision equipment

M3 Threading

• Nominal Diameter: 3mm
• Thread Pitch: 0.5mm
• Hex Key Size: 2.5mm (for cap screws)
• Nut Size: 5.5mm across flats
• Applications: General electronics, mechanical assemblies

M4 Threading

• Nominal Diameter: 4mm
• Thread Pitch: 0.7mm
• Hex Key Size: 3mm (for cap screws)
• Nut Size: 7mm across flats
• Applications: Heavy-duty fastening, structural applications

M5 Threading

• Nominal Diameter: 5mm
• Thread Pitch: 0.8mm
• Hex Key Size: 4mm (for cap screws)
• Nut Size: 8mm across flats
• Applications: Heavy-duty fastening, structural applications, larger assemblies

Computer Hardware Threading

• 6-32 UNC: Standard for motherboards, HDDs, power supplies
• M2 x 0.4mm: M.2 NVMe SSD mounting
• Various: Fan screws, case screws, thumb screws

#6 Wood/Sheet Metal Screws

• Thread Size: #6 (3.5mm nominal diameter)
• Thread Type: Self-tapping (wood/sheet metal screws)
• Drive: Phillips cross-slot
• Head: Flat head (countersunk)
• Applications: Wood assembly, sheet metal, general construction

3mm Plastic Self-Tapping Screws

• Thread Size: 3mm nominal diameter
• Thread Type: Self-tapping for plastic materials
• Drive: Phillips cross-slot
• Head: Button head (rounded, low profile)
• Material: Plastic construction
• Applications: Plastic assembly, electronics enclosures, non-metallic assemblies

#8 Wood/Sheet Metal Screws

• Thread Size: #8 (4.2mm nominal diameter)
• Thread Type: Self-tapping (wood/sheet metal screws)
• Drive: Phillips cross-slot
• Head Types: Button head (rounded) and flat head (countersunk)
• Material: Steel construction
• Applications: Heavy-duty wood assembly, thick materials, structural construction

Head Types Available

Hex Socket Cap Head

• Drive: Internal hex socket (Allen key)
• Profile: Low-profile cylindrical head
• Standard: ISO 4762 or DIN 912
• Locations: Bins 49, 50, 52, 57, 59, 64

Button Head (Socket Head)

• Drive: Internal hex socket (Allen key)
• Profile: Low-profile rounded head, lower than cap head
• Standard: ISO 7380 or DIN 7991
• Locations: Bins 61-B (M5), 64 (M2.5)
• Applications: Aesthetic applications, minimal protrusion required

Phillips Head

• Drive: Phillips cross-slot
• Profile: Flat head or pan head
• Applications: M2.5 standoff kit (Bin 55)

Phillips Flat Head (Countersunk)

• Drive: Phillips cross-slot
• Profile: Flat head designed to sit flush with surface
• Standard: Various (wood screws, sheet metal screws)
• Locations: Bin 58-B (#6 screws)
• Applications: Wood assembly, sheet metal, general construction

Phillips Button Head

• Drive: Phillips cross-slot
• Profile: Rounded button head, low profile but not countersunk
• Standard: Various (wood screws, sheet metal screws)
• Locations: Bins 58-D, 58-F (#6 screws)
• Applications: Wood assembly, decorative applications, where flush mounting not required

Computer Hardware Heads

• Phillips: Standard computer screws
• Hex: Some motherboard and case screws
• Thumb Screws: Tool-free case panel removal

Material Specifications

304 Stainless Steel

• Properties: Excellent corrosion resistance, moderate strength
• Locations: Bins 49, 55 (screws/nuts)
• Applications: General purpose, outdoor use

Brass

• Properties: Excellent conductivity, corrosion resistance
• Locations: Bins 54, 55 (standoffs)
• Applications: Electrical grounding, motherboard mounting

Steel (Plain/Zinc-Plated)

• Properties: High strength, economical
• Locations: Various bins
• Applications: General mechanical assemblies

Applications by Category

Electronics Assembly

• Circuit board mounting and spacing
• Component attachment and securing
• Enclosure assembly and panel mounting
• Heat sink and cooling system installation

Computer Hardware

• Motherboard mounting with standoffs
• Storage device installation (HDD/SSD/M.2)
• Fan and cooling system mounting
• Power supply and graphics card installation

Mechanical Assembly

• General machine assembly
• Structural fastening applications
• Precision instrument construction
• Prototype and development work

Specialized Applications

• T-slot and modular framing systems
• Small electronics and miniature assemblies
• Load distribution and surface protection
• Educational and hobby projects

Installation Guidelines

General Best Practices

• Use appropriate thread engagement (minimum 1.5x diameter)
• Select proper screw length for assembly thickness
• Use washers for load distribution on soft materials
• Apply appropriate torque to avoid over-tightening
• Keep hex keys and drivers properly sized for each application

Material Considerations

• Stainless steel: Excellent for corrosive environments
• Brass: Ideal for electrical applications requiring conductivity
• Steel: Best for high-strength mechanical applications
• Use thread locker for permanent assemblies or vibration resistance

Tags

machine-screws, hex-head-screws, nuts, washers, standoffs, metric-hardware, computer-hardware, universal-inventory cabinet-5 status-available

Quick Reference Guide

By Application

• Electronics/Circuit Boards: Bins 55 (M2.5), 57 (M3 short), 56-B (washers)
• Computer Building: Bins 51 (complete kit), 54 (motherboard kit)
• General Assembly: Bins 49 (M3 various), 52 (M4), 50 (M3 long), 59 (M5 hex head), 61-B (M5 button head)
• Precision Work: Bins 55 (M2.5), 56-D (slot nuts), 58-E (M2.5 25mm), 64 (M2.5 comprehensive)
• Load Distribution: Bins 56-B (M3 washers), 58-A (M2.5 washers)
• Wood/Construction: Bins 58-B (#6 flat head), 58-D (#6 button head 3/4”), 58-F (#6 button head 1”), 63 (#8 heavy-duty)
• Plastic Assembly: Bin 61-A (3mm plastic self-tapping screws)

By Thread Size

• M2.5: Bins 55 (complete kit), 56-D (slot nuts), 58-A (washers), 58-E (25mm long), 64 (hex/button head 5-25mm)
• M3: Bins 49 (various), 50 (long), 54 (motherboard), 56-B (washers), 57 (short)
• M4: Bin 52 (8-20mm lengths)
• M5: Bins 59 (12mm black hex head screws), 61-B (8-10mm button head screws)
• #6: Bins 58-B (3/4” flat head), 58-D (3/4” button head), 58-F (1” button head)
• #8: Bin 63 (3/4”-1.5” button head and flat head screws)
• 3mm Plastic: Bin 61-A (12-20mm self-tapping plastic screws)
• Computer: Bin 51 (#6-32, M3, M2, various)

Torque Specifications (Typical)

• M2.5: 0.8-1.2 Nm
• M3: 1.5-2.5 Nm
• M4: 3.0-4.5 Nm
• M5: 5.0-7.5 Nm
• Computer Hardware: 0.5-2.0 Nm (varies by application)

Notes

This universal inventory consolidates all machine screw, nut, and washer components across Cabinet-5, providing comprehensive fastening solutions from M2.5 miniature applications to M4 heavy-duty assemblies. The collection includes specialized computer hardware, precision electronics fasteners, and general-purpose mechanical hardware. Having multiple thread sizes, head types, and materials ensures the right fastener is available for virtually any assembly requirement. Essential for electronics work, computer building, mechanical assemblies, and general hardware applications requiring reliable, professional-grade metric and computer hardware fasteners.