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Quarter-Turn Panel Fasteners

For M4 Standard Locknut - Nut not Included
$5.53 - $6.59 Price Details
Composite Base M4 Nylon Locknut - Stainless
$3.07 - $3.65 Price Details
For M4 Standard Locknut - Nut not Included
$5.25 - $6.26 Price Details

Stainless Base M5 Nylon Locknut - Stainless
$7.97 - $9.49 Price Details
For M5 Standard Locknut - Nut not Included
$5.53 - $6.59 Price Details
Composite Base M5 Nylon Locknut - Stainless
$3.07 - $3.65 Price Details

For M5 Standard Locknut - Nut not Included
$5.25 - $6.26 Price Details
Stainless Base M6 Nylon Locknut - Stainless
$7.97 - $9.49 Price Details
For M6 Standard Locknut - Nut not Included
$5.99 - $7.13 Price Details

Composite Base M6 Nylon Locknut - Stainless
$3.07 - $3.65 Price Details
For M6 Standard Locknut - Nut not Included
$5.69 - $6.77 Price Details
SK-NS THUMBNAIL
PlusFlush Grommet .065 Grip Stainless
$3.41 - $4.31 Price Details
Alternate Part Number 1: 4002-NS
Alternate Part Number 2: 1142903-2

Standard Plus Flush Grommet - Steel
$3.46 - $4.38 Price Details
SK-O12S THUMBNAIL
PlusFlush Grommet .500 Stainless
$6.84 - $8.66 Price Details
Standard Plus Flush Grommet - 1/4" Grip - Steel
$6.86 - $8.68 Price Details

SK-O14S THUMBNAIL
PlusFlush Grommet .250 Grip Stainless
$6.52 - $8.25 Price Details
SK-O18S THUMBNAIL
PlusFlush Grommet .125 Grip Stainless
$5.91 - $7.48 Price Details
Alternate Part Number 1: SK-316S
SK-OS THUMBNAIL
PlusFlush Grommet .094 Grip Stainless
$3.41 - $4.31 Price Details
Alternate Part Number 1: 4002-OS
Alternate Part Number 2: 1142903-3

SK-OSG1-8 THUMBNAIL
PlusFlush Grommet .094 Grip Stainless No Float
$3.85 - $4.88 Price Details
Alternate Part Number 1: 4002-OS
Alternate Part Number 2: 1142903-3
SK-R4G THUMBNAIL
Standard Grommet Retainer - Steel
$0.33 - $0.37 Price Details
Alternate Part Number 1: R4G
Alternate Part Number 2: 1142902
SK-R4GS THUMBNAIL
Standard Grommet Retainer - Stainless
$0.48 - $0.54 Price Details
Alternate Part Number 1: 40G26-1
Alternate Part Number 2: 1142902
Alternate Part Number 3: 40G26-1

Retaining Snap Ring .058 Steel
$0.61 - $0.67 Price Details
SK-R4TS THUMBNAIL
Heavy Duty Grommet Retainer - Stainless
$0.73 - $0.81 Price Details
Alternate Part Number 1: R4T
Alternate Part Number 2: 1142913
SK-R560 THUMBNAIL
Backing Grommet for Worn Holes .560 Skirt OD
$5.11 - $5.68 Price Details

Temporary Retainer
$0.29
Alternate Part Number 1: B1000-012
ZLoc Stud Retainer - Stainless
$0.73 - $0.81 Price Details
Alternate Part Number 1: SR3SS
ZLoc Stud Retainer - Stainless
$0.72 Price Details
Alternate Part Number 1: SR4SS

ZLoc Stud Retainer - Stainless
$0.73 - $0.81 Price Details
Alternate Part Number 1: SR5SS
Alternate Part Number 2: SK4HOR
ZLoc Stud Retainer - Steel
$0.73 - $0.81 Price Details
Alternate Part Number 1: SR6SS
ZG-094LA THUMBNAIL
Large Area Grommet .750 Dia .094 Grip Skytanium
$5.12 - $5.69 Price Details

ZG-125LA THUMBNAIL
Large Area Grommet .750 Dia .125 Grip Skytanium
$5.44 - $6.05 Price Details
ZG-187LA THUMBNAIL
Large Area Grommet .750 Dia .187 Grip Skytanium
$6.15 - $6.84 Price Details
ZG2500-10B THUMBNAIL
Collared Slotted Stud - Skytanium 300Lb Hard Anodized
$8.36 - $9.29 Price Details

ZG2500-1B THUMBNAIL
Collared Slotted Stud - Skytanium 300Lb Hard Anodized
$7.82 - $8.69 Price Details
ZG2500-2B THUMBNAIL
Collared Slotted Stud - Skytanium 300Lb Hard Anodized
$7.82 - $8.69 Price Details
ZG2500-3B THUMBNAIL
Collared Slotted Stud - Skytanium 300Lb Hard Anodized
$7.82 - $8.69 Price Details

ZG2500-4B THUMBNAIL
Collared Slotted Stud - Skytanium 300Lb Hard Anodized
$7.82 - $8.69 Price Details
ZG2500-5B THUMBNAIL
Collared Slotted Stud - Skytanium 300Lb Hard Anodized
$7.82 - $8.69 Price Details
ZG2500-6B THUMBNAIL
Collared Slotted Stud - Skytanium 300Lb Hard Anodized
$8.10 - $9.00 Price Details

ZG2500-7B THUMBNAIL
Collared Slotted Stud - Skytanium 300Lb Hard Anodized
$8.10 - $9.00 Price Details
ZG2500-8B THUMBNAIL
Collared Slotted Stud - Skytanium 300Lb Hard Anodized
$8.36 - $9.29 Price Details
ZG2500-9B THUMBNAIL
Collared Slotted Stud - Skytanium 300Lb Hard Anodized
$8.36 - $9.29 Price Details

ZG2500R10B THUMBNAIL
Ring Stud - Skytanium 300Lb Hard Anodized
$11.94 - $13.27 Price Details
ZG2500R1B THUMBNAIL
Ring Stud - Skytanium 300Lb Hard Anodized
$11.35 - $12.61 Price Details
ZG2500R2B THUMBNAIL
Ring Stud - Skytanium 300Lb Hard Anodized
$11.35 - $12.61 Price Details

ZG2500R3B THUMBNAIL
Ring Stud - Skytanium 300Lb Hard Anodized
$11.35 - $12.61 Price Details
ZG2500R4B THUMBNAIL
Ring Stud - Skytanium 300Lb Hard Anodized
$11.35 - $12.61 Price Details
ZG2500R5B THUMBNAIL
Ring Stud - Skytanium 300Lb Hard Anodized
$11.35 - $12.61 Price Details

ZG2500R6B THUMBNAIL
Ring Stud - Skytanium 300Lb Hard Anodized
$11.84 - $13.16 Price Details
ZG2500R7B THUMBNAIL
Ring Stud - Skytanium 300Lb Hard Anodized
$11.84 - $13.16 Price Details
<<   <  Page of 21  >   >>
 

About Skybolt Fasteners

Precision-Engineered Quarter-Turn Fasteners for Aerospace, Defense, and High-Performance Applications

Skybolt manufactures high-strength panel fasteners, quick-release fasteners, and captive fastener systems in 300-series stainless steel and proprietary Skytanium® alloys. Our products serve general aviation, commercial aerospace, defense, industrial, and marine markets with design strength ratings that meet or exceed NASM5591 Chart II specifications.

Product Innovations

  • Skytanium® Alloy – 30–50% weight reduction with steel-equivalent strength properties
  • Diamondhead® CLoc® Rc – 27 stainless fasteners meet NASM5591 Chart II ratings (independently tested)
  • Adjustable-Depth Fasteners – Accommodates varying panel stack-ups
  • Specialty Head Styles – Wing, folding ring, and folding wing configurations
  • Nutsert-Installed Systems – Blind installation for limited-access applications
  • Quad-Lead Skyloc® – Positive-locking structural fastening

Quarter-Turn Fastener Systems

Skybolt produces fastener families compatible with industry-standard Camloc®, Dzus®, and Airloc® designs:

  • CLoc® Series – Camloc®-style quarter-turn fasteners (most common in general aviation and commercial aerospace)
  • DLoc® Series – Dzus®-style spring-loaded fasteners
  • ALoc® Series – Airloc®-style fasteners (common on Beechcraft applications)

Most Skybolt quarter-turn fasteners use 300-series stainless steel, avoiding the corrosion susceptibility of A286 or 400-series alloys while maintaining superior strength-to-weight performance.

📋 Application Guide

Select the appropriate CLoc® series based on structural requirements and panel geometry:

ApplicationRecommended SeriesNotes
Aircraft – Restricted Panel Overlap CLoc® 2500 <0.500" mounting width
Aircraft – Standard Panel CLoc® 2600 / 2700 / 2800 ≥0.500" mounting width
Beechcraft (Bonanza, Baron) CLoc® 4000 & ALoc® OEM-style compatibility
Industrial / Heavy-Duty CLoc® 4000 / 5000 / 6000 Semi-structural to structural loading
Defense / Armor Plating CLoc® 6000 Blast-resistant applications
Rotary/Fixed-Wing Aircraft CLoc® 2000 / 4000 / 5000 / 6000 Load-rated by application
Land-Based Vehicles CLoc® 5400 / 5500 High-vibration environments
Marine CLoc® 2000 Corrosion-resistant stainless
NASCAR / Road Racing CLoc® 2800 (Skytanium®) Maximum weight savings
Sprint Car / Oval Track ZLoc® 6 Series High-cycle durability
NHRA Drag Racing ZLoc® 6 Series Extreme load / vibration

🔧 Custom Engineering & Production

Skybolt provides full design-to-production support for application-specific fastener requirements. Our engineering team can develop custom solutions, typically within 30 days depending on component complexity and approval requirements.

Core Capabilities:

  • Application analysis and fastener selection
  • Custom material specifications
  • Prototype development and validation
  • Production tooling and manufacturing
  • FAA-PMA certification support (where applicable)

Trademark Notices: Camloc® is a registered trademark of Howmet Aerospace Inc. Dzus® is a registered trademark of Southco, Inc. Airloc® is a registered trademark of Lisi Aerospace.

Skybolt Fasteners is an independent manufacturer. Product references indicate design compatibility only. Skybolt is not affiliated with, endorsed by, or sponsored by these trademark holders.

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