Quarter Turn Stud Selection
1) Which Series Do You Require? 400 series (4mm shaft), 600 Series (6mm shaft) or 1000 series (10mm shaft)
2) Calculate The Grip Length. This is the distance from the underside of the head to the bottom of the Circlip groove (Top Face of the Clip). This is found by adding together the thickness of the Moveable Panel (dim X), the thickness of the Fixed Framework (dim Z) and the gap between the two (dim Y). If the resultant figure is not a whole number you must round up to the nearest mm IE: 12.6mm Becomes 13mm and 22.3mm Becomes 23mm.
There are a number of factors which may also be needed to be taken into account when calculating your grip length as follows:
How Do You Wish To Retain The Stud In The Panel? Neoprene Washer, Circlip or Circlip and Bowed Washer for Compression.
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Which Type Of Receptacle Do You Wish To Use? Clip in Clip, Tolerance Clip, Rivet Clip, Angle Bracket, Weld Plate: for more details on clips click here.
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There Are A Number of Additional Components which can be used in conjunction with the Oddie Stud and Clip. These must also be added to the Final Grip Length calculation. Dimensions for all these items can be found in the table below.
| 400 Series | 600 Series | 1000 Series | |
| Cup Washer | 0.80mm | 0.80mm | 0.80mm |
| Bowed Washer | 0.45mm | 0.30mm | 0.25mm |
| Angle Bracket | 1.50mm | 1.50mm | 1.50mm |
| Weld Plate | 1.20mm | 0.90mm | 0.90mm |
| Clearance Hole Diameter in Removable Panel | 10.30mm | 6.30mm | 4.30mm |
| Clearance Hole Diameter in Framework Rivet On Clips and Weld Plate | 18.00mm | 12.00mm | 8.50mm |
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If a Clip in Clip Is To Be Used, An Additional Dimension Must Be Added To The Grip Length. This is the gap between the panels which is caused by the retaining legs of the Clip in Clip. However if the gap required is greater than the following sizes then no additional dimension will need to be added.
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400 Series = 1.10mm
600 Series = 2.00mm
1000 Series = 1.8mm
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This Gap (dimension Q) is calculated by subtracting the thickness of the panel into which the clip fits (dimension Z) from the constant (dimension R) given in the table below.
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NB: the gap dimension is the minimum that is possible. If the gap between the two panels is greater than the minimum dimension you do not need to factor it into the calculation.
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This Gap (dimension Q) is calculated by subtracting the thickness of the panel into which the clip fits (dimension Z) from the constant (dimension R) given in the table below.
| Type | Panel Thickness Range (dim. z) | Part No. | Dimension R (Constant) |
| 400 Series | 0.5 - 0.99mm | 430101 | 1.5mm |
| 1.0 - 1.69mm | 430102 | 2.0mm | |
| 1.7 - 2.4mm | 430103 | 2.8mm | |
| 600 series | 0.6 - 1.29mm | 430105 | 1.9mm |
| 1.3 - 2.19mm | 430106 | 2.6mm | |
| 2.2 - 3.7mm | 430107 | 4.2mm | |
| 1000 Series | 1.2 - 1.69mm | 430109 | 2.6mm |
| 1.7 - 2.89mm | 430110 | 3.5mm | |
| 2.9 - 3.7mm | 430111 | 4.6mm |
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Neoprene Calculation. To enable a Neoprene Washer to be correctly selected a simple calculation needs to be done.
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Having calculated the Grip Length of the Stud you must then subtract the Moveable or Top Panel thickness from the figure. You must also subtract any Cup Washer or Bowed Washer sizes from the Grip Length.
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Having arrived at the above figure you must then add 30% for compression.
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If the final figure is not a whole number then round up to the nearest mm.
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Clip in Clip Panel Preparation. In order to fit a Clip in Clip a rectangular hole is required in the panel the clip is to be fitted to. The dimensions for this are listed below:
| Type | J | K | Tool Part No |
| 400 Series | 8.7 ± .01 | 9 ± .01 | 470011 |
| 600 Series | 13 ± .01 | 12 ± .01 | 470012 |
| 1000 Series | 20 ± .01 | 16.5 ± .01 | 470013 |
3) Which Head Style Do You Require? Slotted Dome, Socket Recess, Wing Head or Low Profile
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| Slotted Dome Head (Part No - 0) |
Wing Head (Part No - 1) |
Socket Recess Head (Part No - 2) |
Low Profile Wing (Part No - 3) |
4) Finally You Need To Decide Upon The Required Finish. We offer the following: Zinc & Clear, Delta Black, Chrome, Stainless Steel, and Bright Nickel.
Part Number Key
The Part Number for the Oddie Studs contains all the information you require to identify stud series, head style, grip length and finish; it is broken down as follows:
