Why is there only 4 nuts and 4 washers and 8 bolts?

This bolt kit is for one seat. 4 bolts to bolt sliders to the seat. The other 4 bolts with washers and nuts are to bolt the sliders to the seat brackets.

Do you need two hardware packs to install seat base and sliders or will one pack do both?

I bought this more than a few years ago, but I only needed one pack to do both the seat and sliders.

Will these fit NRG seats ??

They should, they are all pretty standard on the bolt size and threading used

If i buy these are they for sparco seat brackets?or for any brackets

Will work for sparco and sparco replica

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Sparco (50001) 下部マウントシートハードウェア

Product ID: 733871520

Details

Size
One Size
Color
Silver
Material
Metal
Brand
スパルコ(Sparco)
Fastener Type
Metric

📏Compact 1.27 x 12.7 x 5.08 cm dimensions

⚙️Precision 8mm x 1.25mm thread pitch

🛠️Durable zinc finish for corrosion resistance

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€ 50.70

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Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 50.70

Duties & taxes included

In stock

Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to France.

Secure transaction

Description

⚙️ Upgrade your ride with precision-engineered Sparco seat hardware!

BUILT TO LAST - Zinc finish ensures long-lasting corrosion resistance, keeping your setup pristine.
MADE IN THE USA - Proudly manufactured domestically, guaranteeing quality and reliability.
COMPACT LIGHTWEIGHT - At just 110g and compact dimensions, it’s easy to handle and install without bulk.
PRECISION FIT EVERY TIME - Engineered with an 8mm x 1.25mm thread pitch for seamless Sparco seat integration.
COMPLETE MOUNTING SOLUTION - Includes 16 pieces to transform your Sparco seat into a fully functional base and slider.

The Sparco (50001) Lower Mount Seat Hardware is a high-quality, zinc-finished mounting kit designed to convert Sparco bottom mount seats into fully functional bases and sliders. Featuring a precise 8mm x 1.25mm thread pitch and a compact, lightweight design, this 16-piece set ensures durable, corrosion-resistant performance and easy installation. Made in the USA, it’s the essential upgrade for professional-grade seating setups.

Specifications

Head Style	Hex
Finish Type	Zinc
Shape	Round
Thread Size	8 mm x 1.25 mm
Number of Pieces	16
Compatible groove diameter	8 Millimeters
Manufacturer	Sparco
UPC	301775468287
Part number	50001
Item Weight	110 g
Is Discontinued By Manufacturer	No
Finish	Zinc
Batteries Included	No
Batteries Required?	No

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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