XM2010 chassis screw question

[KodaiSusumu]

I got superrrrrrr lucky to put my hands on an xm2010 chassis and ony 9 screws came with it. 6 with 7/64 hex for the top rail and other 3 with 1/8 hex (weird). I do believe they are the same length but I am not pretty sure what exact spec they are and where I can find extra. It kinda bothers me because I dont have enough extra 4 8/40 for m24 receivers so I am looking for getting extra ones (better to be m2010 original). Also please let me know their torque specs!

If anyone cares the 7/64 screws have 'IHUAI 12.9' on top

Please help make my dream come true!!! Thanks a lot!!!

 

[DFOOSKING]

Sounds like you need a local Fastenal store.....I'm told Ace Hardware is also a good place for oddball fasteners and gun screws.

 

[RemCustom6]

I found my RACS chassis hardware screws at my local Ace hardware store. 8-40’s can be purchased from Brownells.

 

[KodaiSusumu]

I found my RACS chassis hardware screws at my local Ace hardware store. 8-40’s can be purchased from Brownells.

Would you like to give me some clues or specs of the chassis screws you bought? Also mind sharing the link to Brownells? Appreciate so much!

 

[Post Oak]

The rail screws and accessory rail screws are: Flat Head Cap Screws 10-32 x 3/8" that use a 1/8" hex allen wrench. I found those at ACE.

The rail to receiver screws are: 8-40 x 3/8" Black Oxide T-15 Star Drive Fillister Head Gun Screws. I ordered those online.

#8-40 x 3/8" Black Oxide T-15 Fillister Head Star Drive Gun Screws (10 pcs.)

Bulk pricing and custom sizes available! Contact us.Nominal Size: #8-40 x 3/8"Head Diameter: 0.2380"Head Height: 0.0915"Threaded Length: 0.3560"Overall Length: 0.4485"Material: Hardened SteelFinish: Black OxideHead Style: Fillister (T-15 Star Bit)Thread Size: 40 (Fine)Thread Length: FullType...

fastenerline.com

 

[KodaiSusumu]

The rail screws and accessory rail screws are: Flat Head Cap Screws 10-32 x 3/8" that use a 1/8" hex allen wrench. I found those at ACE.

The rail to receiver screws are: 8-40 x 3/8" Black Oxide T-15 Star Drive Fillister Head Gun Screws. I ordered those online.

#8-40 x 3/8" Black Oxide T-15 Fillister Head Star Drive Gun Screws (10 pcs.)

Bulk pricing and custom sizes available! Contact us.Nominal Size: #8-40 x 3/8"Head Diameter: 0.2380"Head Height: 0.0915"Threaded Length: 0.3560"Overall Length: 0.4485"Material: Hardened SteelFinish: Black OxideHead Style: Fillister (T-15 Star Bit)Thread Size: 40 (Fine)Thread Length: FullType...

fastenerline.com

You are the life savior!

 

[Post Oak]

I went through the same process last year, ha!

The FHCS's I got at ACE have YFS stamped on the top. The original ones that came on my chassis were unmarked. If you want the original ones from Remington you can get them here for $8.99 each:

https://gunrepaircenter.com/racs-handguard-flat-rail-screw-hex/?searchid=0&search_query=xm2010

I just replaced all mine with the ones from ACE since the hex heads were worn and I had to cut a new slot to extract one.

 

[KodaiSusumu]

I went through the same process last year, ha!

The FHCS's I got at ACE have YFS stamped on the top. The original ones that came on my chassis were unmarked. If you want the original ones from Remington you can get them here for $8.99 each:

https://gunrepaircenter.com/racs-handguard-flat-rail-screw-hex/?searchid=0&search_query=xm2010

I just replaced all mine with the ones from ACE since the hex heads were worn and I had to cut a new slot to extract one.

Literally found them this morning lol. Thank you so much for the info! I am also curious about their torque specs and if you have any clue?

 

[Post Oak]

The manual says to assemble all 6 top rail screws finger tight. Then starting at the rear and working forward, tighten the screws 1/4 - 1/2 turn past finger tight.

I used 15 inch pounds on my torque wrench.

 

[KodaiSusumu]

The manual says to assemble all 6 top rail screws finger tight. Then starting at the rear and working forward, tighten the screws 1/4 - 1/2 turn past finger tight.

I used 15 inch pounds on my torque wrench.

Thanks again!

 

[macethetemplar]

The exact screws you want are 1/4-28 Fine Thread, 3/4” Length Socket Cap Screw for the RACS screws.

Obviously the receiver screws will be different but most likely 8-40 (8-40 X 1/4" Blued Torx Head Fillister) and will need trimmed to length (if doing yourself insert bolt until it hits screw sticking down and then trim to fit).

 

[KodaiSusumu]

The exact screws you want are 1/4-28 Fine Thread, 3/4” Length Socket Cap Screw for the RACS screws.

Obviously the receiver screws will be different but most likely 8-40 (8-40 X 1/4" Blued Torx Head Fillister) and will need trimmed to length (if doing yourself insert bolt until it hits screw sticking down and then trim to fit).

I believe 1/4'' is too short to pass thru the chassis top rail...