Windshield Panel

The fastening methods alternatives for the windshield are aimed to be removable, efficient installation, and cost-effective.

Surrounding panels: Roof panel, hood, side panel (driver’s side and passenger side) and bulkheads?

Also see: Windshield Fastening

Captive Panel Screw

1. Quarter-Turn Capacitive Panel Screw

• Rivet-mount nut and Quarter turn screw

• Zinc-plated steel and corrosion resistant

• Cost: ~$3/each

https://www.mcmaster.com/quarter-turn-fasteners/rounded-head-quarter-turn-captive-panel-screws-with-rivet-mount-nut/

https://www.mcmaster.com/quarter-turn-fasteners/rounded-head-quarter-turn-captive-panel-screws-with-clip-on-nut/ → Applicable to larger panel thickness range

(Quarter-Turn Fastener in-use is similar to: https://www.youtube.com/watch?v=EnNuQW5P9cs @15:18 min)

Sizing for Dzus Fasteners:

(Image link: https://static.speedwaymotors.com/images/charts/Measuring_Guide.jpg)

Fastening hood + windshield for example, has a combined thickness of 12 mm = 0.47 inches, thus a dzus fastener with 0.6 inch + button length would be appropriate

Quarter-turn fasteners: https://www.speedwaymotors.com/Steel-Oval-Head-Quarter-Turn-Fasteners-600-Inch-Grip-Pack-10,29397.html

0.700 inch grip Dzus fasteners: https://www.speedwaymotors.com/Self-Ejecting-Quarter-Turn-Fasteners-700-Inch-Grip-Pack-10,29647.html

https://timmcamis.com/shop/chassis/dzus-fasteners.html

1. Twist-to-Lock Press-Fit Capacitive Panel

• Pull knob and rotate 90 degrees to lock

• Zinc-plated steel and corrosion resistant

• Cost: ~5.42/each

https://www.mcmaster.com/quarter-turn-fasteners/twist-to-lock-press-fit-captive-panel-retractable-spring-plungers/

Quick-Release Pins

• Zinc-plated, mild corrosion resistance and Flat-head

• Sizes diameter: 3/16”, 1/4”, 5/16”, 3/8”, 1/2”

• Cost: ~$10 / 10 pieces

https://www.mcmaster.com/pins/flat-head-quick-release-pins/

https://www.mcmaster.com/pins/add-a-handle-quick-release-pins/

Rivet Nut + Screw

Steel Twist Rivet Nut: https://www.mcmaster.com/rivet-nuts/steel-twist-resistant-rivet-nuts/

• Thread size: 1/2”-13, body diameter: 0.685”, body length: 1.450”

Flat-head screw: https://www.mcmaster.com/screws/flat-head-screws/vibration-resistant-flat-head-screws/

• Thread size: 1/2”-13, length: 1.25”

Front Bridge Panel thickness: 6.5 mm

Windshield thickness: 6 mm

Hood flange thickness: 6 mm

Front bridge & windshield combined thickness: 12.5 mm = 0.49 inches

Hood flange & windshield combined thickness: 12 mm = 0.47 inches

Dzus Fastener grip length = combined panel thickness + spring height (ranges from 0.15” to 0.175”)

Max grip length required = 0.49” + 0.175” = 0.665”

Min grip length required = 0.47” + 0.15” = 0.62”

Windshield Mounting Methods & Locations

Table 2: Proposed Mounting Locations & Method for the Windshield Panel

Windshield to Hood

Quarter-turn fasteners would be used to fix the windshield to the hood. These fasteners would be mounted along the flange of the hood panel (Figure 1, below). It is suggested that 6 screws be used to support mounting of the windshield to the hood.

Figure 1: Quarter-Turn Fasteners on the Hood

Figure 2: Measuring Guide for Dzus Quarter-turn Fasteners

Length C, grip length = 0.7 inches and diameter of the screw is 5/16 inches (link: https://www.speedwaymotors.com/Self-Ejecting-Quarter-Turn-Fasteners-700-Inch-Grip-Pack-10,29647.html)

Windshield to Front Bridge

Quarter-turn fasteners would be used to fix the windshield to the front bridge. These fasteners would be mounted as pictured (Figure 3, below). It is suggested that 6 screws be used to support mounting of the windshield to the front bridge.

Figure 3: Quarter-turn Fasteners on the Front Bridge

Windshield to Side Panel