Would this be considered a M6 type thread?

I was not really sure what M6 meant so forgive me if this is an ignorant answer but according to my brief research it seems like you're asking if it is a metric thread? In that case the answer would be no, the thread is 1/4 20, meaning 1/4 inch is the diameter of the screw and their are 20 threads per inch, which I believe would make it imperial not metric. If this didn't address your concerns or you have any further questions feel free to reach out to me at info@threebellesoutfitters.com or to yakattack directly at customerservice@yakattack.us

Would these work on the Jonny Boats Bass 100 rail system?

They should work no problem, you may just have to use them with the T-bolt at an angle depending how wide your track is, if it does have a wide slot opening you may want to also order one of their feel free unitrack adaptor plates for each T-bolt secured product you plan to have. The YakAttack product number is AAP-1012 for one and AAP-1012-6 for a six pack.

what are the dimensions of the T-head?

I just measured some and it appears to be 1 1/8" (at widest point as the edges are rounded) x 1/2" x 1/8", these are not official measurments from Yak Attack though, I just measured some we had in our retail store.

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YakAttack MightyBolt 6 Pack - 2” Long x ½” Wide Stainless Steel T-Bolts

YakAttack MightyBolt 6 Pack - 2” Long x ½” Wide Stainless Steel T-Bolts

Product ID: 150930900

Details

Exterior Finish
Stainless
Head Style
Flat
Manufacturer Grade
Premium
Material
Stainless
Thread Size
1/4-20

🌊marine-grade corrosion resistance

🔩6 stainless steel T-bolts

⚙️¼-20 standard threading

AR$66299

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Description

🔩 Lock in your adventure with MightyBolt precision!

SIX PACK POWER - Rig multiple kayak accessories without compromise.
PRECISION THREADING - Secure 2” stud with industry-standard ¼-20 threading.
PROUDLY MADE IN THE USA - Engineered for durability and backed by Yak Attack’s Built for Life Guarantee.
BUILT TO BRAVE THE ELEMENTS - Marine-grade stainless steel resists salt and freshwater corrosion.
UNIVERSAL TRACK COMPATIBILITY - Seamlessly fits YakAttack, Scotty, RAM, and more.

The YakAttack MightyBolt 6 Pack offers six premium stainless steel T-bolts designed for universal compatibility with most kayak track systems. Featuring durable marine-grade construction and standard ¼-20 threading, these bolts ensure secure mounting of your gear in any water environment. Made in the USA and backed by a lifetime guarantee, they’re the trusted choice for serious kayakers looking to upgrade their rigging setup.

Specifications

ASIN	B07KT9HGXK
Best Sellers Rank	#207,935 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #825 in Kayak Accessories
Brand	YakAttack
Color	Stainless Steel
Compatible Groove Diameter	0.5 inches
Customer Reviews	4.7 4.7 out of 5 stars (197)
Exterior Finish	Stainless Steel
Fastener Size	2 x ½
Fastener Type	T-Bolt
Finish Types	Stainless Steel
Head Type	Hex
Item Diameter	0.25 inches
Item Hardness	Grade 10.9
Item Highlight	¼-20 Thread \| Fits MightyMount, GearTrac & Most Kayak Track Systems \| Made in USA
Manufacturer	YakAttack
Manufacturer Grade	Premium
Material Type	Stainless Steel
Metal Type	Stainless Steel
Model	MB20-12-6
Number Of Items	6
Number of Packs	6
Number of Pieces	6
Part Number	MB20-12-6
Screw Head Style	Flat
Set Name	MightyBolt 6 Pack
Set Screw Thread Type	Unified National Fine (UNF)
Size Name	1/2"
Thread Coverage	Fully Threaded
Thread Size	1/4-20
Thread Style	Right Hand, Coarse, UNC, Full
Thread Type	Unc
UPC	819731013728
Unit Count	6 Count

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AR$66299

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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