China ASME B18.2.1 UNC Hex Bolt Gulu 5 Black Oxide Inch Kukula 1/2-13 opanga ndi ogulitsa

ASME B18.2.1 UNC Hex Bolt Giredi 5 Black Oxide Inchi Kukula 1/2-13 Chithunzi Chowonetsedwa

ASME B18.2.1 UNC Hex Bolt Gulu 5 Black Oxide Inchi Kukula 1/2-13

Kufotokozera Kwachidule:

Muyezo: ASME B18.2.1

Dzina lazogulitsa: UNC Hex Head Bolt Black Oxide

Mawu Ofunika: ASME B18.2.1, UNC, A307

Kukula: 1/4″-2″

zakuthupi: 10B21, 35K, 45 # zitsulo

Gulu Lamphamvu: Gulu 5, Gulu 8

Chithandizo cha Pamwamba: Black Oxide

Utali Wa Ulusi: Ulusi Wathunthu/ Theka Ulusi

Mtundu wa Ulusi: Wowoneka / Wabwino

Kuyika: Katoni / Pallet

Zina: Perekani chizindikiro chamutu chokhazikika

Titumizireni imelo

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Kufotokozera

ONANGAYankho

ONANGANdemanga

ONANGAKutumiza

OKONZEKA KUTUMIKIRA SOMBO

10000+ SKU mu nkhokwe

Timadzipereka pazinthu za RTS:

70% zinthu zoperekedwa mkati mwa masiku 5

80% zinthu zoperekedwa mkati mwa masiku 7

90% zinthu zoperekedwamkati mwa masiku 10

Maoda ambiri, chonde lemberani makasitomala

Chonde titumizireni kuti mudziwe zambiri, monga kulemera kwake, ndondomeko yonyamula katundu, mndandanda wamtengo wapatali, ndi zina zotero.

Dia/d		1/4	5/16	3/8	7/16	1/2	5/8	3/4	7/8	1	1-1/8	1-1/4	1-3/8	1-1/2
PP	UNC	20	18	16	14	13	11	10	9	8	7	7	6	6
	UNF	28	24	24	20	20	18	16	14	12	12	12	12	12
	8-UN	-	-	-	-	-	-	-	-	-	8	8	8	8
d_s	max	0.26	0.324	0.388	0.452	0.515	0.642	0.768	0.895	1.022	1.149	1.277	1.404	1.531
d_s	min	0.237	0.298	0.36	0.421	0.482	0.605	0.729	0.852	0.976	1.098	1.223	1.345	1.47
s	max	0.438	0.5	0.562	0.625	0.75	0.938	1.125	1.312	1.5	1.688	1.875	2.062	2.25
s	min	0.425	0.484	0.544	0.603	0.725	0.906	1.088	1.269	1.45	1.631	1.812	1.994	2.175
e	max	0.505	0.577	0.65	0.722	0.866	1.083	1.299	1.516	1.732	1.949	2.165	2.382	2.598
e	min	0.484	0.552	0.62	0.687	0.826	1.033	1.24	1.447	1.653	1.859	2.066	2.273	2.48
k	max	0.188	0.235	0.268	0.316	0.364	0.444	0.524	0.604	0.7	0.78	0.876	0.94	1.036
k	min	0.15	0.195	0.226	0.272	0.302	0.378	0.455	0.531	0.591	0.658	0.749	0.81	0.902
r	max	0.03	0.03	0.03	0.03	0.03	0.06	0.06	0.06	0.09	0.09	0.09	0.09	0.09
r	min	0.01	0.01	0.01	0.01	0.01	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.03
b	L≤6	0.75	0.875	1	1.125	1.25	1.5	1.75	2	2.25	2.5	2.75	3	3.25
b	L＞6	1	1.125	1.25	1.375	1.5	1.75	2	2.25	2.5	2.75	3	3.25	3.5

Dia/d		1-5/8	1-3/4	1-7/8	2	2-1/4	2-1/2	2-3/4	3	3-1/4	3-1/2	3-3/4	4
PP	UNC	-	5	-	4-1/2	4-1/2	4	4	4	4	4	4	4
	UNF	-	-	-	-	-	-	-	-	-	-	-	-
	8-UN	8	8	8	8	8	8	8	8	8	8	8	8
d_s	max	1.658	1.785	1.912	2.039	2.305	2.559	2.827	3.081	3.335	3.589	3.858	4.111
d_s	min	1.591	1.716	1.839	1.964	2.214	2.461	2.711	2.961	3.21	3.461	3.726	3.975
s	max	2.438	2.625	2.812	3	3.375	3.75	4.125	4.5	4.875	5.25	5.625	6
s	min	2.356	2.538	2.719	2.9	3.262	3.625	3.988	4.35	4.712	5.075	5.437	5.8
e	max	2.815	3.031	3.248	3.464	3.897	4.33	4.763	5.196	5.629	6.062	6.495	6.928
e	min	2.616	2.893	3.099	3.306	3.719	4.133	4.546	4.959	5.372	5.786	6.198	6.612
k	max	1.116	1.196	1.276	1.388	1.548	1.708	1.869	2.06	2.251	2.38	2.572	2.764
k	min	0.978	1.054	1.13	1.175	1.327	1.479	1.632	1.815	1.936	2.057	2.241	2.424
r	max	0.09	0.12	0.12	0.12	0.19	0.19	0.19	0.19	0.19	0.19	0.19	0.19
r	min	0.03	0.04	0.04	0.04	0.06	0.06	0.06	0.06	0.06	0.06	0.06	0.06
b	L≤6	3.5	3.75	4	4.25	4.75	5.25	5.75	6.25	6.75	7.25	7.75	8.25
b	L＞6	3.75	4	4.25	4.5	5	5.5	6	6.5	7	7.5	8	8.5

Mwatsatanetsatane kujambula

Kodi "UNC" imatanthauza chiyani?

UNC imatanthawuza ulusi wokhuthala ku United States ulusi wogwirizana wa UN (posankha ulusi wozungulira wakunja).

Kodi mankhwala amtundu wa Black Oxide ndi chiyani?

Black oxide, njira yodziwika bwino yopangira mankhwala pamwamba. Black okusayidi ndi njira wamba mankhwala pamwamba mankhwala. Mfundo yake ndi kupanga filimu ya oxide pamwamba pazitsulo kuti isungunuke mpweya ndikukwaniritsa cholinga chopewa dzimbiri. Pamene zofunikira zowoneka sizili zapamwamba, mdima wakuda ungagwiritsidwe ntchito, ndipo pamwamba pazitsulo zazitsulo zimakhala zakuda, zomwe zimatchedwanso buluu.

Njira zomwe zimagwiritsidwa ntchito kwambiri pochiza wakuda oxide ndi monga kutenthetsa kwakale kwa alkaline komanso kutentha kwachipinda komwe kumachitika pambuyo pake. Komabe, njira yakuda pa kutentha sikothandiza kwambiri pazitsulo zochepa za carbon. Kudetsa kwa alkaline kumagawika, ndipo pali kusiyana pakati pakuda kamodzi ndikuda kawiri. Zigawo zikuluzikulu za blackening madzi ndi sodium hydroxide ndi sodium nitrite. Kusiyanitsa kwa kutentha komwe kumafunikira kuti mdimawo ukhale wakuda si waukulu, ndipo malo abwino amatha kupezeka pakati pa 135-155 ° C, koma nthawi yofunikira ndi yayitali pang'ono.