2006年11月13日 · SAE J1199 is even more restrictive, as it specifies that property class 4.8, 5.8, 8.8, 9.8, and 10.9 bolts and screws in sizes up to M20 inclusive be cold headed.

2007年4月30日 · Property class 10.9 is a designation according to ISO 898-1 (or SAE J1199 or ASTM F 568M, they are all essentially identical). Yield stress is 0.2 % offset. Proof stress is nominally 90 % of the yield stress, and technically it is a stress applied to the fastener that causes no permanent deformation. Here is an excerpt from ISO 898-1: To meet the requirements of the proof load test, the length ...

2018年3月7日 · Hello All, I was looking at our parts here at work a few months ago and realized that there might've been a somewhat significant, overlooked detail during the early years of the company. We use Grade 5 screws with suspension parts. These suspension parts are sway bar end-links (see image). I...

2008年8月7日 · SAE J1199 does not show anything for Mn/S ratio. For class 8.8 studs resulfurized steel is permitted (0.13 max), otherwise for class 8.8 max sulfur is 0.058 for plain carbon steel.

2008年1月17日 · FR10 is a designation for wire rod according to AFNOR NF A35-053 Fil machine en acier non allié pour fabrications réalisées par formage à chaud ou à froid - Qualités. SAE only has standards for alloy designations (like SAE J403) or mechanical properties of fasteners (like SAE J1199). For composition, grades 1006 and 1010 in SAE J403 would be close (but not equivalent). However, there are ...

2015年10月13日 · For general work in Canada. It seems like contractors or certain clients like certain types and grades of bolts that are sometimes different that typical specified. Currently our client wants to use a Class 8.8 Steel Hex Bolt that meats SAE J1199. The project itself is a platform that would...

2004年5月19日 · This change in SAE J1199 is in response to the stress-corrosion cracking of class 12.8 bolts in automobile rear suspensions after just 2 years of service in the Snow Belt of the United States (Ref 1). ...

2003年11月3日 · SAE J1237 Metric Thread Rolling Screws covers the requirements for screws that roll their own mating threads (e.g. TAPTITE screws). Your initial post is ambiguous, but I don't think this is what you want. If you want to specify rolled threads on a bolt/screw, then J1199 will work for you. Section 4.3 covers threading practice, and rolled threads are required for property class 10.9 M12 bolts ...

2002年8月19日 · I can't speak directly about 2H nuts, but over the past year with SAE J1199 class 10.9 and 12.9 fasteners I have seen a deterioration in material selection, heat treatment, and rolling quality.

2005年2月14日 · I was using the values published per SAE J1199 (metric), except for 10mmx1.0, which I got from the Bosch Automotive Handbook, which reference DIN 13.Both you and diamondjim have shed a lot of light on this.