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Home / Hardware / Fasteners / Dzus /Dzus Oval Head Studs Long Undercut
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Dzus Oval Head Studs Long Undercut

38 Reviews 5 Answered Questions
From $2.20 to $17.50
Reference Chart

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Material
Type		 Model A B L Grommets
&Snap
Rings		 Springs Cat
#		 Price Buy
Zinc Electroplated121J-325-Z3C.1875.075.250GA3-175, 200, 250 GP3B, GH3 SR3SS, SX-520SSS3-150, 175 200, 225AJ3-25*$2.93
Quantity
Zinc Electroplated121J-330-Z3C.1875.100.300GA3-175, 200, 250 GP3B, GH3 SR3SS, SX-520SSS3-150, 175 200, 225
AJ3-30
$2.75
Quantity
Zinc Electroplated121J-335-Z3C.1875.150.350GA3-175, 200, 250 GP3B, GH3 SR3SS SX-520SSS3-150, 175 200, 225AJ3-35*$2.45
Quantity
Zinc Electroplated121J-340-Z3C.1875.200.400GA3-175, 200, 250 GP3B, GH3 SR3SS SX-520SSS3-150, 175 200, 225
AJ3-40
$2.79
Quantity
Zinc Electroplated121J-425-Z3C.250.100.250GA4-225, 250, 275, 300 GP4B, GH4 SR4SS SX-523SSS4-200, 225AJ4-25*$2.95
Quantity
Zinc Electroplated121J-430-Z3C.250.100.300GA4-225, 250, 275, 300 GP4B, GH4 SR4SS SX-523SSS4-200, 225
AJ4-30
$2.95
Quantity
Zinc Electroplated121J-435-Z3C.250.150.350GA4-225, 250, 275, 300 GP4B, GH4 SR4SS SX-523SSS4-200, 225AJ4-35*$2.20
Quantity
Zinc Electroplated121J-440-Z3C.250.200.400GA4-225, 250, 275, 300 GP4B, GH4 SR4SS SX-523SSS4-200, 225
AJ4-40
$2.90
Quantity
Zinc Electroplated121J-445-Z3C.250.225.450GA4-225, 250, 275, 300 GP4B, GH4 SR4SS SX-523SSS4-200, 225AJ4-45*$5.95
Quantity
Zinc Electroplated121J-450-Z3C.250.250.500GA4-225, 250, 275, 300 GP4B, GH4 SR4SS SX-523SSS4-200, 225
AJ4-50
$2.93
Quantity
Zinc Electroplated121J-530-Z3C.3125.125.300GA5-312, 350, 375 GP5B, GH5 SR5SS SX-510SSS5A200, 225, 250, 275
AJ5-30
$3.35
Quantity
Zinc Electroplated121J-535-Z3C.3125.125.350GA5-312, 350, 375 GP5B, GH5 SR5SS SX-510SSS5A200, 225, 250, 275AJ5-35*$2.95
Quantity
Zinc Electroplated121J-540-Z3C.3125.190.400GA5-312, 350, 375 GP5B, GH5 SR5SS SX-510SSS5A200, 225, 250, 275
AJ5-40
$2.97
Quantity
Zinc Electroplated121J-545-Z3C.3125.190.450GA5-312, 350, 375 GP5B, GH5 SR5SS SX-510SSS5A200, 225, 250, 275AJ5-45*$2.94
Quantity
Zinc Electroplated121J-550-Z3C.3125.250.500GA5-312, 350, 375 GP5B, GH5 SR5SS SX-510SSS5A200, 225, 250, 275
AJ5-50
$2.95
Quantity
Zinc Electroplated121J-560-Z3C.3125.300.600GA5-312, 350, 375 GP5B, GH5 SR5SS SX-510SSS5A200, 225, 250, 275
AJ5-60
$2.90
Quantity
Zinc Electroplated121J-570-Z3C.3125.400.700GA5-312, 350, 375 GP5B, GH5 SR5SS SX-510SSS5A200, 225, 250, 275
AJ5-70
$6.85
Quantity
Zinc Electroplated121J-635-Z3C.375.150.350GA6-350, 375, 425 GP6B, GH6 SR6SS SX-518SSS6-225, 250, 275 300AJ6-35*$2.88
Quantity
Zinc Electroplated121J-640-Z3C.375.190.400GA6-350, 375, 425 GP6B, GH6 SR6SS SX-518SSS6-225, 250, 275 300
AJ6-40
$2.54
Quantity
Zinc Electroplated121J-650-Z3C.375.250.500GA6-350, 375, 425, GP6B, GH6 SR6SS SX-518SSS6-225, 250, 275 300
AJ6-50
$3.90
Quantity
Zinc Electroplated121J-660-Z3C.375.300.600GA6-350, 375, 425 GP6B, GH6 SR6SS SX-518SSS6-225, 250, 275 300
AJ6-60
$2.37
Quantity
Zinc Electroplated121J-670-Z3C.375.350.700GA6-350, 375, 425 GP6B, GH6 SR6SS SX-518SSS6-225, 250, 275 300
AJ6-70
$3.49
Quantity
Zinc Electroplated121J-750-Z3C.4375.250.500GA7-375, 475, 525 GH7 SR7SS SR7SS SX-519SSS7-225, 250, 275 300
AJ7-50
$17.50
Quantity
Zinc Electroplated121J-770-Z3C.4375.350.700GA7-375, 475, 525 GH7 SR7SS SR7SS SX-519SSS7-225, 250, 275 300
AJ7-70
$6.55
Quantity
Stainless121J-335-SS.1875.150.350SR3SSAJ3-35SS*$6.50
Quantity
Stainless121J-425-SS.250.100.250GA4-225, 250, 275, 300 GP4B, GH4 SB4SS SX-523SSS4-200, 225AJ4-25SS*$14.50
Quantity
Stainless121J-430-SS.250.100.300GA4-225, 250, 275, 300 GP4B, GH4 SB4SS SX-523SSS4-200, 225
AJ4-30SS
$8.50
Quantity
Stainless121J-435-SS.250.150.350GA4-225, 250, 275, 300 GP4B, GH4 SB4SS SX-523SSS4-200, 225AJ4-35SS*$5.45
Quantity
Stainless121J-440-SS.250.200.400GA4-225, 250, 275, 400 GP4B, GH4 SB4SS SX-523SSS4-200, 225
AJ4-40SS
$4.35
Quantity
Stainless121J-530-SS.3125.125.300GA5-312, 350, 375 GP5B, GH6 SR5SSS5A200 225 250 275
AJ5-30SS
$4.75
Quantity
Stainless121J-535.3125.125.350GA5-312, 350, 375 GP5B, GH5 SR5SSS5A200 225 250 275AJ5-35SS*$3.80
Quantity
Stainless121J-540.3125.190.400GA5-312, 350, 375 GP5B, GH5 SR5SSS5A200 225 250 275
AJ5-40SS
$3.85
Quantity
Subtotal $0.00
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Overview

Download the Application Chart (PDF)

CAD Plated fasteners are no longer available due to enviromental reasons.

( * ) :No longer available after our current stock is depleted. Please order next longer size.
   
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In The Box

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Reviews

Submit a Review

Used to replace the cowl fasteners that had been rounded out by previous owner. Worked perfectly

Anthony F Verified Purchase

Dzus Fasteners AJ5-35
November 23, 2024

+++++

Tod Verified Purchase

Dzus Fasteners AJ5-40
October 30, 2024

+++++

Tod Verified Purchase

Dzus Fasteners AJ5-35
October 30, 2024

+++++

Tod Verified Purchase

Dzus 121J-530-Z3Ct
October 30, 2024

Tom G Verified Purchase

Dzus Fasteners AJ5-40
August 10, 2024

Excellent

Aircraft I Verified Purchase

Dzus Stud AJ5-45
May 28, 2024

perfect fit

Tim W Verified Purchase

AJ3-35 Cadmium Oval Head Stud
March 21, 2024

Arrived on time and as ordered. NOTE: Remember to order grommet and catch wire assembly if needed.

Scott C Verified Purchase

Dzus Fastener AJ3-25
January 19, 2024

Dzus studs were top quality.

James F Verified Purchase

AJ5-30Stainless Steel Dzus Oval Head Stud
December 12, 2023

Great product and great description

Lee M Verified Purchase

Dzus Fastener Stud AJ4-35
October 29, 2023

Q&A

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Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: If I order a Dzus fastener, does it come with the appropriate spring?

No, the springs are sold separate.

Q: Are the dimension in inches are in cm?

Dims are in inches.

Q: I own a 1947 Bonanza 35, Dzus part # for the studs are AJ5-30. What is the corresponding Dzus spring part #?

It depends on the total thickness from under the head to the spring. For that stud it would be S5A-200 through 275. There is a chart on the web.

Q: Do these come with the delrin washers/spacers?

No, you can purchase the GP3B separately, its a plastic half grommet.

Q: What snap ring is used to retain Dzus D4-AJ5-30?

You would use an SR5SS snap ring for AJ5 dzus fasteners.

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