Buy what you need. Heavyweight nylon thread on two and four ounce spools for about $11. Sizes range from 207 to 554 / Tex 210 / 600. Ideal for one time projects and for artisans needing many colors. Use heavyweight nylon thread for sewing leather, upholstery, auto interiors, covers, horse tack, saddles and tack, shoes and boots, and conveyer belts .
https://www.thethreadexchange.com/miva/graphics/00000001/juniors2.jpg For thread size 207, use a size 140/22 to 180/24 needle.
For thread size 277, use a size 180/24 to 220/26 needle.
For thread size 346, use a size 220/26 to 260/28 needle.
For thread size 415, use a size 260/28 to 330/30 needle.

New! All Groz-Beckert Machine Needles and C.S. Osborne Hand Sewing Needle Kits
Information
Nylon Thread Buying Guide
Code Description Image Price Stock  
BNL207BEI104Ba Nylon - Size 207 - Beige (A&E 36030) - Bonded - Nominal 4 Oz Spool - 500 Yards Beige Color Chip $13.59 5
BNL207BEID04Ba Nylon - Size 207 - Shade 1600 (Cocoa) (A&E 34140) - Bonded - Nominal 4 Oz Spool - 500 Yards Shade 1600 (Cocoa) Color Chip $13.59 7
BNL207BEIL04Be Nylon - Size 207 - Oyster (Eddington) - Bonded - Nominal 4 Oz Spool - 500 Yards Beige Color Chip $12.69 1
BNL207BEIX02Ba Nylon - Size 207 - Natural (A&E 34215) - Bonded - Nominal 2 Oz Spool - 250 Yards Natural Color Chip $11.19 9
BNL207BLAC04Ba Nylon - Size 207 - Black (A&E 56033) - Bonded - Nominal 4 Oz Spool - 500 Yards Black Color Chip $13.59 12
BNL207BLAC04Be Nylon - Size 207 - Black (Eddington) - Bonded - Nominal 4 Oz Spool - 500 Yards Black Color Chip $12.69 2
BNL207BLU202Ba Nylon - Size 207 - Blue (A&E 34072) - Bonded - Nominal 2 Oz Spool - 250 Yards Blue Color Chip $11.19 3
BNL207BLU302Ba Nylon - Size 207 - Dark Blue Teal (A&E 34974) - Bonded - Nominal 2 Oz Spool - 250 Yards Dark Blue Teal Color Chip $11.19 2
BNL207BLU304Ba Nylon - Size 207 - Dark Blue Teal (A&E 34974) - Bonded - Nominal 4 Oz Spool - 500 Yards Dark Blue Teal Color Chip $13.59 3
BNL207BLUR04Ba Nylon - Size 207 - Royal Blue (A&E 36099) - Bonded - Nominal 4 Oz Spool - 500 Yards Royal Blue Color Chip $13.59 3
BNL207BROG04Be Nylon - Size 207 - Gold Brown (Eddington 3285) - Bonded - Nominal 4 Oz Spool - 525 Yards Gold Brown Color Chip $12.69 3
BNL207BRP502Ba Nylon - Size 207 - Brown (A&E 35557) - Bonded - Nominal 2 Oz Spool - 250 Yards Brown Color Chip $11.19 1
BNL207BRP504Ba Nylon - Size 207 - Brown (A&E 35557) - Bonded - Nominal 4 Oz Spool - 500 Yards Brown Color Chip $13.59 3
BNL207BRP604Bf Nylon - Size 207 - Tan 499 (Fil-Tec) - Bonded - Nominal 4 Oz Spool - 500 Yards Tan 499 Color Chip $13.09 4
BNL207BRPI04Bf Nylon - Size 207 - Coyote 498 (Fil-Tec) - Bonded - Nominal 4 Oz Spool - 500 Yards Coyote 498 Color Chip $13.09 6
BNL207BRPL02Bf Nylon - Size 207 - Saddle Brown (Fil-Tec) - Bonded - Nominal 2 Oz Spool - 250 Yards Saddle Brown Color Chip $8.69 1
BNL207BRPL04Bf Nylon - Size 207 - Saddle Brown (Fil-Tec) - Bonded - Nominal 4 Oz Spool - 500 Yards Saddle Brown Color Chip $13.09 6
BNL207GRBH02Bf Nylon - Size 207 - Hoover Gray (Fil-Tec) - Bonded - Nominal 2 Oz Spool - 250 Yards Hoover Gray Color Chip $10.89 7
BNL207GRBH04Bf Nylon - Size 207 - Hoover Gray (Fil-Tec) - Bonded - Nominal 4 Oz Spool -500 Yards Hoover Gray Color Chip $13.09 5
BNL207ORAR02Be Nylon - Size 207 - Chinese Rust (Eddington 12391) - Bonded - Nominal 2 Oz Spool - 250 Yards Chinese Rust Color Chip $10.49 5
BNL207ORAR04Be Nylon - Size 207 - Chinese Rust (Eddington 12391) - Bonded - Nominal 4 Oz Spool - 500 Yards Chinese Rust Color Chip $12.69 2
BNL207PUQ202Ba Nylon - Size 207 - Purple (A&E 35312) - Bonded - Nominal 2 Oz Spool - 250 Yards Purple Color Chip $11.19 1
BNL207PUQ204Ba Nylon - Size 207 - Purple (A&E 35312) - Bonded - Nominal 4 Oz Spool - 500 Yards Purple Color Chip $13.59 6
BNL207WHIT02Ba Nylon - Size 207 - White (A&E 30001) - Bonded - Nominal 2 Oz Spool - 250 Yards White Color Chip $11.19 10
BNL207WHIT04Be Nylon - Size 207 - White (Eddington) - Bonded - Nominal 4 Oz Spool - 500 Yards White Color Chip $12.69 3
BNL207WHIT04Bf Nylon - Size 207 - White (Fil-Tec) - Bonded - Nominal 4 Oz Spool -500 Yards White Color Chip $13.09 10
BNL207YELN02Be Nylon - Size 207 - Lemon (Eddington 4005) - Bonded - Nominal 2 Oz Spool - 250 Yards Lemon Color Chip $10.49 6
BNL207YELN04Be Nylon - Size 207 - Lemon (Eddington 4005) - Bonded - Nominal 4 Oz Spool - 500 Yards Lemon Color Chip $12.69 5
BNL277BEI104Ba Nylon - Size 277 - Beige (A&E 36030) - Bonded - Nominal 4 Oz Spool - 375 Yards Beige Color Chip $13.59 7
BNL277BEIX04Be Nylon - Size 277 - Natural (Eddington 001) - Bonded - Nominal 4 Oz Spool - 375 Yards Natural Color Chip $12.69 5
BNL277BLAC02Be Nylon - Size 277 - Black (Eddington) - Bonded - Nominal 2 Oz Spool - 187 Yards Black Color Chip $10.49 1
BNL277BLAC04Ba Nylon - Size 277 - Black (A&E 56033) - Bonded - Nominal 4 Oz Spool - 375 Yards Black Color Chip $13.59 8
BNL277BLAC04Be Nylon - Size 277 - Black (Eddington) - Bonded - Nominal 4 Oz Spool - 375 Yards Black Color Chip $12.69 3
BNL277BLUR04Ba Nylon - Size 277 - Royal Blue (A&E 36099) - Bonded - Nominal 4 Oz Spool - 375 Yards Royal Blue Color Chip $13.59 3
BNL277BRP502Ba Nylon - Size 277 - Brown (A&E 35557) - Bonded - Nominal 2 Oz Spool - 187 Yards Brown Color Chip $11.19 3
BNL277GRA504Ba Nylon - Size 277 - New Gray 90782 (A&E 36195) - Bonded - Nominal 4 Oz Spool - 375 Yards New Gray Color Chip $13.59 4
BNL277WHIT04Ba Nylon - Size 277 - White (A&E 30001) - Bonded - Nominal 4 Oz Spool - 375 Yards White Color Chip $13.59 16
BNL277WHIT04Be Nylon - Size 277 - White (Eddington) - Bonded - Nominal 4 Oz Spool - 375 Yards White Color Chip $12.69 8
BNL346BLAC04Be Nylon - Size 346 - Black (Eddington) - Bonded - Nominal 4 Oz Spool - 325 Yards Black Color Chip $12.69 5
BNL346WHIT02Be Nylon - Size 346 - White (Eddington) - Bonded - Nominal 2 Oz Spool - 150 Yards White Color Chip $10.49 4
BNL346WHIT02Bt Nylon - Size 346 - White (Service Thread) - Bonded - Nominal 2 Oz Spool - 150 Yards White Color Chip $9.39 1
BNL346WHIT04Be Nylon - Size 346 - White (Eddington) - Bonded - Nominal 4 Oz Spool - 300 Yards White Color Chip $12.69 6
BNL277GRE504Ba Nylon - Size 277 - Green Pepper (A&E 67021) - Bonded - Nominal 4 Oz Spool - 375 Yards Pepper Green Color Chip $13.59 4
BNL277ORA204Ba Nylon - Size 277 - Orange (A&E 34370) - Bonded - Nominal 4 Oz Spool - 375 Yards Orange Color Chip $13.59 6
BNL277REDT04Be Nylon - Size 277 - Scarlet (Eddington 2003) - Bonded - Nominal 4 Oz Spool - 375 Yards Scarlet Color Chip $12.69 2