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StoreFront / SkyLoc® Structural Fasteners / SkyLoc® Stud Nut (SN) Series / SkyLoc® Quad Lead Pan Head

SkyLoc® Pan Head Studs — Enhanced Grip and Visual Confirmation

Series: QL8C21

SkyLoc SN Pan Head Studs Reference Table

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Pan Head SN studs feature a raised head profile for improved manual grip, tool engagement, and visual installation confirmation. Ideal for maintenance-intensive environments where frequent access is required.

✓ Advantages

Larger bearing surface for positive engagement
Easy visual verification of installation
Improved handling with gloves or tools
Wide grip range coverage

📋 Typical Applications

Engine access panels
Maintenance hatches
Equipment bay panels
High-cycle service areas

🔧 QL8C62 Installation

Kee'd Threaded Insert — Install .010–.030 below surface

Drill support structure with 29/64 drill to depth of .775 (thru hole tap)
C'Sink 82° or 100° to .510–.520 width
Tap 1/2-13 UNC-2B, .650 min depth
Install .010–.030 below surface
For hardened supports, broach with QL8-B1 Tool
Drive Kees with Skybolt QL8-T1 Tool

🔧 QL8C78 Installation

Non-Kee'd Threaded Insert — Receptacle is flush with surface

Drill support structure with 25/64 drill to depth of .775 (thru hole tap)
C'Bore .105 to .140
Tap 7/16-20 UNF-2B
Loctite threads to desired depth

📋 Important Notes:

(1) Ensure proper length stud nut is used for panel thickness. If torque loads exceed 15 in-lbs and outer panel is not secure, the cams will be damaged requiring receptacle replacement. If cams are skipping, replace stud nut.
(2) If the stud nut is too long, it will force the end of the stud nut to compress the springs into coil bind. When this happens, the notches on the end will shear the small nubs on top of the upper cam, rendering the locking feature useless.
(3) Minimum Grip reduces 1:1 for every .001" receptacle is below the surface.
(4) If Min Grip is exceeded (less than charted), the cam system will fail requiring replacement of the receptacle.

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SkyLoc® Quad Lead Pan Head

QL8C24-0PH

Pan Head L=.375 Grip .095-.155

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$12.75 - $15.00 Price Details

Alternate Part Number 1: CA1821-0

QL8C24-1PH

Pan Head L=1.281 Grip 1.001-1.093

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$12.75 - $15.00 Price Details

Alternate Part Number 1: CA1821-10

QL8C24-2PH

Pan Head L=1.375 Grip 1.094-1.187

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$10.08 - $11.85 Price Details

Alternate Part Number 1: CA1821-11

QL8C24-3PH

Pan Head L=1.468 Grip 1.188-1.281

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$10.08 - $11.85 Price Details

Alternate Part Number 1: CA1821-12

QL8C24-4PH

Pan Head L=1.562 Grip 1.282-1.375

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$11.94 - $14.04 Price Details

Alternate Part Number 1: CA1821-13

QL8C24-5PH

Pan Head L=1.656 Grip 1.376-1.468

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$11.94 - $14.04 Price Details

Alternate Part Number 1: CA1821-14

QL8C24-6PH

Pan Head L=1.750 Grip 1.469-1.562

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$11.94 - $14.04 Price Details

Alternate Part Number 1: CA1821-15

QL8C24-7PH

Pan Head L=1.843 Grip 1.563-1.656

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$11.94 - $14.04 Price Details

Alternate Part Number 1: CA1821-16

QL8C24-8PH

Pan Head L=1.936 Grip 1.657-1.750

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$25.16 - $29.60 Price Details

Alternate Part Number 1: CA1821-17

QL8C24-9PH

Pan Head L=2.032 Grip 1.751-1.843

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$25.16 - $29.60 Price Details

Alternate Part Number 1: CA1821-18

QL8C24-10PH

Pan Head L=.437 Grip .156-.250

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$25.16 - $29.60 Price Details

Alternate Part Number 1: CA1821-1

QL8C24-11PH

Pan Head L=.531 Grip .251-.343

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$25.16 - $29.60 Price Details

Alternate Part Number 1: CA1821-2

QL8C24-12PH

Pan Head L=.625 Grip .344-.437

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$25.16 - $29.60 Price Details

Alternate Part Number 1: CA1821-3

QL8C24-13PH

Pan Head L=.718 Grip .438-.531

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