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①,材料:自攻螺钉必须由冷挤压钢制成;核心硬度必须为 290 HV10 至 370 HV10。热处理后的表面硬度必须至少为450 HV0.3。 |
类似标准及供货信息
1 | [国标] GB /T 6564.1 - 2014 |
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2 | [国标] GB 6564 - 1986 |
内六角花形圆柱头自攻锁紧螺钉 Hexagon Lobular Socket Thread Forming Screws 供应商(2) |
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3 | [德标] DIN 7500 (PE) - 2009 |
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4 | [德标] DIN 7500 (QE) - 2009 |
梅花槽半沉头三角锁紧螺钉 Hexalobular Socket Raised Countersunk Head Thread Rolling Screws |
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5 | [汽标代号] Q 260 |
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